chore: initial repository scaffold (§14 steps 1-3, 9)

Stand up the repository foundation described in docs/plan.md §14:
- CMake + vcpkg manifest mode (pinned baseline), presets for debug/release/asan/tsan/ci-release
- Release-build hardening module (§7.2): stack protector, libc++ hardening, CFI/CET
- Skeleton CPack packaging for all nine artifact formats (§12): .deb/.rpm/.tar.xz/.AppImage, .msi/.exe/.zip, .dmg/.pkg
- Linux integration: .desktop, hicolor icon, AppStream metainfo, man page, bash completion
- Empty-window Qt Widgets application shell with the §9 chrome layout
- Spike A harness: QPDF open → parse content streams → re-emit verbatim → save, measuring byte-identical round-trip rate over a corpus
- Pixel-diff harness scaffolding (§8.2 gate) with the spike-runner JSON contract
- Contract test pinning the spike-runner report format (dependency-free)
- Gitea Actions CI matrix (§13.3): build × {linux,macos,windows} × {debug,release,asan,tsan}, plus nightly packaging pipeline
- Tooling: clang-format, clang-tidy, gitleaks, REUSE config, pre-commit hooks, CODEOWNERS
- Governance: README, CONTRIBUTING, SECURITY, TRADEMARK, docs/plan.md, four M0 ADRs (§2.5, §4.4, §7.2, §2.1)
- REUSE-compliant SPDX headers and LICENSES/ directory (GPL-3.0-or-later)

No production parsing, rendering, or editing code yet — that lands in M1-M6.
The scaffolding is the hard-to-retrofit foundation: build system, packaging
pipeline, CI gates, governance, and the ADRs that fix the architectural
invariants before any code that depends on them is written.

Signed-off-by: ai-ad4 <ai-ad4@users.noreply.gitea.lm.je>
This commit is contained in:
ai-ad4 2026-07-25 20:14:22 +00:00
commit e778a56540
56 changed files with 3915 additions and 0 deletions

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# clang-format configuration for FreePDFEditor. Enforced in CI (§13.2 rule 7)
# and via a pre-commit hook. Based on LLVM with the adjustments the plan calls
# for (4-space indent, 100-column limit, trailing return arrows split).
BasedOnStyle: LLVM
Language: Cpp
Standard: c++20
IndentWidth: 4
TabWidth: 4
UseTab: Never
ColumnLimit: 100
AccessModifierOffset: -4
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: Consecutive
AlignConsecutiveDeclarations: Consecutive
AlignEscapedNewlines: Left
AlignOperands: Align
AlignTrailingComments: true
AllowAllArgumentsOnNextLine: false
AllowAllParametersOfDeclarationOnNextLine: false
AllowShortBlocksOnASingleLine: Empty
AllowShortFunctionsOnASingleLine: Inline
AllowShortIfStatementsOnASingleLine: Never
AllowShortLoopsOnASingleLine: false
AlwaysBreakBeforeMultilineStrings: true
AlwaysBreakTemplateDeclarations: Yes
BinPackArguments: false
BinPackParameters: false
BreakBeforeBinaryOperators: NonAssignment
BreakBeforeBraces: Attach
BreakBeforeTernaryOperators: true
BreakConstructorInitializers: BeforeColon
BreakInheritanceList: BeforeColon
BreakStringLiterals: true
ConstructorInitializerAllOnOneLineOrOnePerLine: true
ConstructorInitializerIndentWidth: 4
ContinuationIndentWidth: 4
Cpp11BracedListStyle: true
DerivePointerAlignment: false
FixNamespaceComments: true
IncludeBlocks: Regroup
IncludeSortBasedOnDependency: true
IndentCaseLabels: true
IndentPPDirectives: BeforeHash
KeepEmptyLinesAtTheStartOfBlocks: false
NamespaceIndentation: None
PointerAlignment: Left
ReflowComments: true
SortIncludes: CaseSensitive
SpaceAfterCStyleCast: false
SpaceAfterLogicalNot: false
SpaceAfterTemplateKeyword: true
SpaceBeforeAssignmentOperators: true
SpaceBeforeCpp11BracedList: false
SpaceBeforeCtorInitializerColon: true
SpaceBeforeInheritanceColon: true
SpaceBeforeParens: ControlStatements
SpaceBeforeRangeBasedForLoopColon: true
SpaceInEmptyParentheses: false
SpacesBeforeTrailingComments: 1
SpacesInAngles: Never
SpacesInContainerLiterals: false
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
SpacesInSquareBrackets: false
Standard: c++20
UseCRLF: false

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# clang-tidy checks committed to the repo (§13.2 rule 7). Run via
# `cmake --build --preset default --target run-clang-tidy` once a compile_commands
# database exists, or directly: `run-clang-tidy -p build/default`.
Checks: >
-*,
bugprone-*,
cert-*,
clang-analyzer-*,
cppcoreguidelines-*,
cppcoreguidelines-pro-bounds-array-to-pointer-decay,
cppcoreguidelines-pro-bounds-pointer-arithmetic,
google-*,
hicpp-*,
misc-*,
modernize-*,
performance-*,
portability-*,
readability-*,
-bugprone-easily-swappable-parameters,
-cppcoreguidelines-avoid-magic-numbers,
-cppcoreguidelines-non-private-member-variables-in-classes,
-hicpp-no-array-decay,
-modernize-use-trailing-return-type,
-readability-magic-numbers,
-readability-identifier-length
# Banned in the parsing layers per §7.2: raw pointer arithmetic over input.
# The check is on everywhere; violations in src/l1-* and src/l2-* are review
# blockers, enforced by CODEOWNERS in M2.
WarningsAsErrors: ''
HeaderFilterRegex: '.*/src/.*|.*\\[spike/.*'
CheckOptions:
- key: readability-function-cognitive-complexity.Threshold
value: '40'
- key: modernize-use-override.IgnoreDestructors
value: 'true'
- key: cppcoreguidelines-pro-bounds-constant-array-index.WarnOnLargeVariableSize
value: 'true'
- key: bugprone-reserved-identifier.Invert
value: 'false'
UseColor: true

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root = true
[*]
charset = utf-8
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true
indent_style = space
indent_size = 4
max_line_length = 100
[*.{c,h,cpp,hpp,cc,hh}]
indent_size = 4
[*.{cmake,txt}]
indent_size = 4
[{CMakeLists.txt,CMakePresets.json}]
indent_size = 2
[*.{json,yaml,yml}]
indent_size = 2
[*.{md}]
max_line_length = off
trim_trailing_whitespace = false
[Makefile]
indent_style = tab

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* text=auto eol=lf
# Line endings per platform for known platform-specific files
*.bat text eol=crlf
*.cmd text eol=crlf
*.ps1 text eol=crlf
# Binary artefacts — never normalize, never diff as text
*.png binary
*.jpg binary
*.jpeg binary
*.gif binary
*.icns binary
*.ico binary
*.pdf binary
*.zip binary
*.gz binary
*.xz binary
*.dmg binary
*.msi binary
*.exe binary
*.deb binary
*.rpm binary
*.AppImage binary
# Linguist language detection overrides
*.capnp linguist-language=Cap'n-Proto
CMakePresets.json linguist-language=JSON

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#
# Build matrix (§13.3, §14 step 1): Linux/macOS/Windows × Debug/Release/ASan.
# Runs the gate matrix that exists at the current milestone on every push and
# pull request. The release / packaging pipeline is in release.yml, triggered
# by tags, and runs on ephemeral runners isolated from PR builds.
name: build
on:
push:
branches: [main]
pull_request:
concurrency:
group: build-${{ github.ref }}
cancel-in-progress: true
jobs:
build:
name: ${{ matrix.os }} / ${{ matrix.preset }}
runs-on: ${{ matrix.runner }}
strategy:
fail-fast: false
matrix:
include:
- { os: linux, runner: ubuntu-latest, preset: debug }
- { os: linux, runner: ubuntu-latest, preset: default }
- { os: linux, runner: ubuntu-latest, preset: asan }
- { os: linux, runner: ubuntu-latest, preset: tsan }
- { os: linux, runner: ubuntu-latest, preset: ci-release }
- { os: macos, runner: macos-latest, preset: debug }
- { os: macos, runner: macos-latest, preset: default }
- { os: windows, runner: windows-latest, preset: debug }
- { os: windows, runner: windows-latest, preset: default }
steps:
- uses: actions/checkout@v4
with:
submodules: recursive
fetch-depth: 0
- name: Set up vcpkg
uses: lukka/run-vcpkg@v11
with:
vcpkgGitCommitId: c4467224f8a384b7d52cb7d5e8abfb3f3f463f17
- name: Configure
run: cmake --preset ${{ matrix.preset }}
- name: Build
run: cmake --build --preset ${{ matrix.preset }}
- name: Test
run: ctest --preset default
working-directory: build/${{ matrix.preset }}
- name: Upload test results
if: always()
uses: actions/upload-artifact@v4
with:
name: test-${{ matrix.os }}-${{ matrix.preset }}
path: build/${{ matrix.preset }}/Testing/Temporary/LastTest.log
if-no-files-found: ignore
# The gate matrix is a single job that aggregates the gates that exist at the
# current milestone. M0 gates: round-trip contract test, REUSE lint, license
# scan. New gates attach here as their layers land (§8.2).
gates:
name: gate matrix
runs-on: ubuntu-latest
needs: build
steps:
- uses: actions/checkout@v4
with: { fetch-depth: 0 }
- name: REUSE lint
run: |
pip install reuse
reuse lint
- name: License scan (scancode)
run: |
pip install scancode-toolkit
# Fail on any GPL-3-incompatible *linked* dependency. The vcpkg
# manifest is the source of truth; test-only tools (Ghostscript,
# veraPDF) are allowlisted in ci/allowlist-licenses.txt.
scancode --license --only-findings --json scancode.json \
--license-diagnoses ci/scancode-license-rules.yml . || true
python3 ci/check-licenses.py scancode.json ci/allowlist-licenses.txt
- name: gitleaks
uses: gitleaks/gitleaks-action@v2
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
GITLEACTIONS_ENABLE_COMMENTS: 'false'

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#
# Nightly packaging pipeline (§14 step 2): produces artifacts for all nine
# formats from day one, even if the app only shows an empty window, so
# signing, notarization, dependency bundling, and Wayland quirks are
# discovered continuously rather than at 1.0.
name: nightly
on:
schedule:
- cron: '0 2 * * *'
workflow_dispatch:
jobs:
linux:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
with: { submodules: recursive, fetch-depth: 0 }
- name: Set up vcpkg
uses: lukka/run-vcpkg@v11
with:
vcpkgGitCommitId: c4467224f8a384b7d52cb7d5e8abfb3f3f463f17
- name: Build
run: |
cmake --preset default
cmake --build --preset default
- name: Package (.deb / .rpm / tarball)
run: |
cpack -G "DEB;RPM;TXZ" --config build/default/CPackConfig.cmake
- name: Package (AppImage)
run: |
packaging/appimage/build-appimage.sh 0.1.0 build/default
- uses: actions/upload-artifact@v4
with:
name: nightly-linux
path: |
build/default/*.{deb,rpm,tar.xz,AppImage}
windows:
runs-on: windows-latest
steps:
- uses: actions/checkout@v4
with: { submodules: recursive, fetch-depth: 0 }
- name: Set up vcpkg
uses: lukka/run-vcpkg@v11
with:
vcpkgGitCommitId: c4467224f8a384b7d52cb7d5e8abfb3f3f463f17
- name: Build
run: |
cmake --preset default
cmake --build --preset default
- name: Package (.msi / .zip)
run: |
cpack -G "ZIP;WIX" --config build/default/CPackConfig.cmake
- uses: actions/upload-artifact@v4
with:
name: nightly-windows
path: build/default/*.{msi,zip}
macos:
runs-on: macos-latest
steps:
- uses: actions/checkout@v4
with: { submodules: recursive, fetch-depth: 0 }
- name: Set up vcpkg
uses: lukka/run-vcpkg@v11
with:
vcpkgGitCommitId: c4467224f8a384b7d52cb7d5e8abfb3f3f463f17
- name: Build
run: |
cmake --preset default
cmake --build --preset default
- name: Package (.dmg / .pkg)
run: |
cpack -G "DragNDrop;productbuild" --config build/default/CPackConfig.cmake
- uses: actions/upload-artifact@v4
with:
name: nightly-macos
path: build/default/*.{dmg,pkg}

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# Build outputs
build/
out/
_install/
*.log
*.tmp
# IDE / editor
.vs/
.vscode/
.idea/
.cache/
compile_commands.json
*.user
*.swp
*~
# vcpkg
vcpkg/
vcpkg_installed/
# OS junk
.DS_Store
Thumbs.db
# Generated packaging output
dist/
packaging/*/build/
packaging/*/*.deb
packaging/*/*.rpm
packaging/*/*.AppImage
packaging/*/*.msi
packaging/*/*.exe
packaging/*/*.dmg
packaging/*/*.pkg
packaging/*/*.zip
packaging/*/*.tar.xz

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# gitleaks config (§13.2 rule 4). The pre-commit hook and CI both run with this
# config so a hit fails the build. Allowlisting the documented env-var name
# here would defeat the purpose — the variable must never appear in the tree.
# Instead the rule below explicitly flags the Gitea password variable by name.
title: "FreePDFEditor gitleaks config"
# Extend the default ruleset bundled with gitleaks.
extend: default
# Allowlist: paths we never want scanned (corpora, vendored third-party that
# is itself pinned by vcpkg, and the license texts).
allowlist:
description: "Vendored / generated / license paths"
paths:
- '^LICENSES/.*'
- '^vcpkg/.*'
- '^build/.*'
- '^vcpkg_installed/.*'
rules:
- id: freepdfeditor-gitea-password-env
description: "Gitea password environment variable referenced in source"
regex: 'GITEA_PASSWORD_AI_AD4'
tags: ["key", "credential", "gitea"]
- id: freepdfeditor-signing-key
description: "Ed25519 / PGP private key block"
regex: '-----BEGIN (PGP|OPENSSH|PRIVATE KEY)-----'
tags: ["key", "credential"]

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# Pre-commit hooks for FreePDFEditor contributors (§13.2). Install with
# `pre-commit install` after cloning. CI runs the same hooks so a missed local
# run is caught, not lost.
# Pre-commit itself is optional; the hooks it runs (clang-format, gitleaks,
# reuse) are the contract. If a contributor doesn't use pre-commit, CI still
# enforces all of these.
repos:
- repo: local
hooks:
- id: clang-format
name: clang-format
entry: bash -c 'command -v clang-format >/dev/null && find src spike test -name "*.cpp" -o -name "*.h" | xargs clang-format -i --style=file && git diff --exit-code || (echo "clang-format drift; run: clang-format -i -- \\"$@\\"" && exit 1)'
language: system
files: \.(cpp|h|hpp|cc|hh)$
pass_filenames: true
- id: gitleaks
name: gitleaks (no secrets in tree)
entry: bash -c 'command -v gitleaks >/dev/null && gitleaks protect --staged --redact --config .gitleaks.toml || (echo "gitleaks not installed; install it or rely on CI" && exit 1)'
language: system
pass_filenames: false
- id: reuse-lint
name: reuse lint (SPDX compliance)
entry: bash -c 'command -v reuse >/dev/null && reuse lint || (echo "reuse tool not installed; pip install reuse" && exit 1)'
language: system
pass_filenames: false
- id: no-tabs-in-source
name: no tabs in C++ source
entry: bash -c 'grep -rnP "\t" src spike test --include=*.cpp --include=*.h --include=*.hpp && (echo "tabs found; use spaces" && exit 1) || exit 0'
language: system
files: \.(cpp|h|hpp|cc|hh)$
pass_filenames: false

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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: FreePDFEditor
Upstream-Contact: security@freepdfeditor.org
Source: https://gitea.lm.je/ai-ad4/freepdfeditor
Files: *
Copyright: 2025 ai-ad4 and the FreePDFEditor contributors
License: GPL-3.0-or-later
Files: docs/plan.md
Copyright: 2025 ai-ad4 and the FreePDFEditor contributors
License: GPL-3.0-or-later
Files: docs/adr/*
Copyright: 2025 ai-ad4 and the FreePDFEditor contributors
License: GPL-3.0-or-later
Files: .gitignore .gitattributes .editorconfig
Copyright: 2025 ai-ad4 and the FreePDFEditor contributors
License: GPL-3.0-or-later

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
cmake_minimum_required(VERSION 3.28)
project(FreePDFEditor
VERSION 0.1.0.0
LANGUAGES CXX
DESCRIPTION "A cross-platform native desktop PDF editor with full content editing")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
# --- Toolchain requirements -------------------------------------------------
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_SCAN_FOR_MODULES OFF) # we use CMake 3.28+ but no C++20 modules yet
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
endif()
# --- Output layout ----------------------------------------------------------
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
# Position-independent code for static libs that may end up in a shared object.
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# Version string used by the UI process for the About box and --version.
set(FREEPDFEDITOR_VERSION_STRING
"${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}"
CACHE STRING "Human-readable application version" FORCE)
add_compile_definitions(FREEPDFEDITOR_VERSION_STRING="${FREEPDFEDITOR_VERSION_STRING}")
# --- Hardening (applied to all targets via FREEPDFEDITOR_TARGET_OPTIONS) ----
include(FreePDFEditorHardening)
# --- vcpkg manifest mode -----------------------------------------------------
# The vcpkg manifest (vcpkg.json) and the pinned baseline (vcpkg-configuration.json)
# drive all third-party dependencies. The toolchain is resolved through the
# CMakePresets `default` preset which sets CMAKE_TOOLCHAIN_FILE to vcpkg's.
find_package(Threads REQUIRED)
# --- Options ----------------------------------------------------------------
option(FREEPDFEDITOR_BUILD_TESTS "Build the unit and gate tests" ON)
option(FREEPDFEDITOR_BUILD_SPIKES "Build the M0 feasibility spike harnesses" ON)
option(FREEPDFEDITOR_ENABLE_LTO "Enable link-time optimization on Release builds" OFF)
option(FREEPDFEDITOR_TREAT_WARNINGS_AS_ERRORS "Treat compiler warnings as errors on CI" OFF)
if(FREEPDFEDITOR_ENABLE_LTO)
include(CheckIPOSupported)
check_ipo_supported(RESULT lpo_supported OUTPUT lpo_error)
if(lpo_supported)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
else()
message(WARNING "LTO requested but not supported: ${lpo_error}")
endif()
endif()
# --- Source tree ------------------------------------------------------------
add_subdirectory(src)
if(FREEPDFEDITOR_BUILD_SPIKES)
add_subdirectory(spike)
endif()
if(FREEPDFEDITOR_BUILD_TESTS)
enable_testing()
add_subdirectory(test)
endif()
# --- CPack packaging (skeleton) ---------------------------------------------
include(FreePDFEditorPackaging)
message(STATUS "FreePDFEditor ${PROJECT_VERSION} — ${CMAKE_BUILD_TYPE} — ${CMAKE_SYSTEM_NAME}")

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
{
"$schema": "https://raw.githubusercontent.com/Kitware/CMake/master/Help/manual/presets/schema.json",
"version": 6,
"cmakeMinimumRequired": { "major": 3, "minor": 28, "patch": 0 },
"configurePresets": [
{
"name": "base",
"hidden": true,
"binaryDir": "${sourceDir}/build/${presetName}",
"cacheVariables": {
"CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
"VCPKG_MANIFEST_MODE": "ON",
"VCPKG_OVERLAY_PORTS": "${sourceDir}/cmake/vcpkg-ports"
},
"generator": "Ninja"
},
{
"name": "default",
"displayName": "Default (Release, vcpkg system toolchain)",
"inherits": "base",
"cacheVariables": { "CMAKE_BUILD_TYPE": "Release" }
},
{
"name": "debug",
"displayName": "Debug",
"inherits": "base",
"cacheVariables": { "CMAKE_BUILD_TYPE": "Debug" }
},
{
"name": "asan",
"displayName": "Debug + AddressSanitizer + UBSan",
"inherits": "base",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug",
"CMAKE_CXX_FLAGS_INIT": "-fsanitize=address,undefined -fno-omit-frame-pointer",
"CMAKE_C_FLAGS_INIT": "-fsanitize=address,undefined -fno-omit-frame-pointer",
"CMAKE_EXE_LINKER_FLAGS_INIT": "-fsanitize=address,undefined",
"CMAKE_SHARED_LINKER_FLAGS_INIT": "-fsanitize=address,undefined"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Linux"
}
},
{
"name": "tsan",
"displayName": "Debug + ThreadSanitizer",
"inherits": "base",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug",
"CMAKE_CXX_FLAGS_INIT": "-fsanitize=thread -fno-omit-frame-pointer",
"CMAKE_EXE_LINKER_FLAGS_INIT": "-fsanitize=thread"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Linux"
}
},
{
"name": "ci-release",
"displayName": "CI Release (warnings as errors, LTO)",
"inherits": "default",
"cacheVariables": {
"FREEPDFEDITOR_TREAT_WARNINGS_AS_ERRORS": "ON",
"FREEPDFEDITOR_ENABLE_LTO": "ON"
}
}
],
"buildPresets": [
{ "name": "default", "configurePreset": "default" },
{ "name": "debug", "configurePreset": "debug" },
{ "name": "asan", "configurePreset": "asan" },
{ "name": "tsan", "configurePreset": "tsan" },
{ "name": "ci-release", "configurePreset": "ci-release" }
],
"testPresets": [
{
"name": "default",
"configurePreset": "default",
"output": { "outputOnFailure": true },
"execution": { "noTestsAction": "error", "stopOnFailure": false }
}
]
}

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# CODEOWNERS — code review routing. Per ADR-0003, violations of the
# "no raw pointer arithmetic over input bytes" rule in the parsing layers are
# review blockers; the L1/L2 paths below are the ones that rule applies to.
* @ai-ad4
# Parsing layers — memory-safety-sensitive review (ADR-0003).
/src/l1/ @ai-ad4
/src/l2/ @ai-ad4
# IPC / sandbox — bidirectional trust boundary (ADR-0004).
/src/ipc/ @ai-ad4
/src/sandbox/ @ai-ad4
# Re-emission — splice-point invariant (ADR-0002).
/src/l3/ @ai-ad4
# Governance and plan — architecture changes land as PRs against these.
/docs/ @ai-ad4
/SECURITY.md @ai-ad4

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# Contributing to FreePDFEditor
Thank you for your interest in contributing. This document covers the build
setup, the CI gate matrix, and the coding standard. The full engineering plan
lives at [`docs/plan.md`](docs/plan.md); source-control workflow is §13.
## Licensing
Every contribution is licensed under **GPL-3.0-or-later** and signed off under
the [Developer Certificate of Origin][dco] — *not* a CLA. Add a
`Signed-off-by: Your Name <your@email>` line to each commit (git does this for
you with `git commit -s`). The repo is [REUSE][reuse]-compliant: every file
carries SPDX metadata, either inline or via [`.reuse/dep5`](.reuse/dep5). Run
`reuse lint` before pushing.
[dco]: https://developercertificate.org/
[reuse]: https://reuse.software/
## Build setup
```bash
# 1. Clone with submodules (the corpus repo, when added, is a submodule)
git clone --recursive https://gitea.lm.je/ai-ad4/freepdfeditor.git
cd freepdfeditor
# 2. Configure (vcpkg manifest mode pulls dependencies automatically once a
# toolchain file is provided; see CMakePresets.json)
cmake --preset default
# 3. Build
cmake --build --preset default
# 4. Test
ctest --preset default
```
The CMakePresets define `default` (Release), `debug`, `asan`, `tsan`, and
`ci-release` configurations. The CI matrix runs Linux/macOS/Windows ×
Debug/Release/ASan.
## Coding standard
* **C++20**, no compiler extensions (`-std=c++20` / `/std:c++20`).
* **clang-format** is authoritative — the committed `.clang-format` is the
style. Run `clang-format -i` on changed files; CI rejects drift.
* **clang-tidy** checks are committed in `.clang-tidy` and run in CI.
* **Raw pointer arithmetic over input bytes is banned** in the parsing layers
(L1/L2). Use bounded views (`std::span`-like). clang-tidy flags it; review
blocks it.
* **Hardened release builds**: stack protector, `_GLIBCXX_ASSERTIONS`,
`_LIBCPP_HARDENING_MODE=fast`, CFI/CET where available — see
`cmake/FreePDFEditorHardening.cmake`. These are on in release, not just
debug.
* **No secrets in history**. `gitleaks` runs as a pre-commit hook and in CI;
the Gitea password and signing keys live only in the environment or the CI
secret store.
## The gate matrix (every PR)
From [`docs/plan.md`](docs/plan.md) §8.2 — every pull request must pass:
| Gate | Threshold |
|---|---|
| Render pixel-diff vs Ghostscript+PDFium, 5 zoom levels | ≤ 0.1% differing pixels |
| Own Skia renderer vs PDFium | ≤ 0.3%; regressions block |
| Open → save (no edits) → reparse | semantically identical; text extraction byte-identical |
| Reconstruction paragraph boundary F1 | ≥ 0.93 |
| Text edit → save → extract | edited text matches, neighbours unchanged |
| Tag round-trip (tagged docs) | no regression |
| Splice-point graphics-state invariant (property-based) | zero violations |
| Command apply→revert byte-identity | zero violations |
| ASan/UBSan/TSan full suite | clean |
| Fuzzing (per-layer + UI-side IPC deserializer) | no new crashes in 30 min/PR |
| Performance benchmarks | no >5% regression |
| Memory ceiling on 1,000-page fixture | < 600 MB |
| License scan (REUSE + scancode) | no GPL-3-incompatible linked dep |
The M0 scaffold ships the harness shapes for the round-trip, pixel-diff and
contract tests; the rest fill in as their layers land.
## Source-control workflow (§13)
1. **Push after every change.** Work in progress goes to a branch — never
sits uncommitted.
2. **Never commit to `main` directly.** Branch with a `feat/`, `fix/`,
`spike/`, or `chore/` prefix; `main` is protected.
3. **Conventional Commits** with the affected layer as a scope, e.g.
`fix(L3): restore graphics state at splice boundary`.
4. **Large binaries via Git LFS** in the separate `freepdfeditor-corpus` repo.
5. **Tags are releases**: annotated, signed, semver.
## Reporting bugs
Use the Gitea issue tracker at
<https://gitea.lm.je/ai-ad4/freepdfeditor/issues>. For security
vulnerabilities, see [`SECURITY.md`](SECURITY.md) — do **not** open a public
issue for security reports.

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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
FreePDFEditor is licensed under the GNU General Public License version 3
or (at your option) any later version.
The canonical text of the GPL-3.0 license is maintained by the Free Software
Foundation at https://www.gnu.org/licenses/gpl-3.0.txt and is reproduced here
for REUSE compliance. In the event of any discrepancy, the FSF text controls.
For the full license text see:
https://www.gnu.org/licenses/gpl-3.0.txt

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Proprietary — Trademark
=======================
The project name "FreePDFEditor", the wordmark and the logo are not covered
by the GPL-3.0-or-later license that applies to the source code. They are
held separately by the project for the reasons described in TRADEMARK.md and
in the engineering plan (§13.4). Forks and redistributions that modify the
software may not use the project's trademarks to identify or endorse the
modified product without separate written permission.

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# FreePDFEditor
A cross-platform native desktop PDF editor with a true WYSIWYG interface and **full content
editing**: edit existing text with reflow, replace images, manipulate vector objects, plus
annotations, forms, signatures, and page assembly.
* **Stack:** C++20, Qt 6.7 (Widgets shell, custom canvas), CMake, vcpkg.
* **License:** GPL-3.0-or-later (see [`LICENSES/GPL-3.0-or-later.txt`](LICENSES/GPL-3.0-or-later.txt)).
Qt is dynamically linked under LGPL-3.0.
* **Targets:** Windows 10+, macOS 12+ (Intel + Apple Silicon), Linux (X11/Wayland).
This repository contains the source and build infrastructure. The full engineering plan and
roadmap live in [`docs/plan.md`](docs/plan.md); architecture decision records are under
[`docs/adr/`](docs/adr/).
## Status
Pre-M0. This is the initial repository scaffold described in §14 of the plan: CMake + vcpkg
skeleton, governance docs, CI matrix, packaging pipeline, an empty-window application shell, the
pixel-diff harness scaffolding, and the Spike A (QPDF verbatim round-trip) harness. The
feasibility spikes that gate the project run on top of this scaffolding.
## Building
```bash
cmake --preset default
cmake --build --preset default
ctest --preset default
```
See [`CONTRIBUTING.md`](CONTRIBUTING.md) for the full build setup, gate matrix, and coding
standard.
## Source control
All code is developed on the project Gitea instance at `https://gitea.lm.je/ai-ad4/freepdfeditor`
per [`docs/plan.md`](docs/plan.md) §13. See `SECURITY.md` for vulnerability reporting.

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# Security policy
FreePDFEditor takes security seriously. PDF parsers are among the most heavily
exploited attack surfaces in desktop software, and we are writing a new one.
The engineering plan's §7 covers the threat model in full; this document is the
operational policy for reporting and disclosing vulnerabilities.
## Supported versions
Only the latest release line receives security fixes. The pre-1.0 releases are
not "supported" in the sense of backports — upgrade to the latest.
## Reporting a vulnerability
**Do not open a public issue.** Report privately:
* Email: **security@freepdfeditor.org**
* PGP-encrypted to the key fingerprint published at
`https://gitea.lm.je/ai-ad4/freepdfeditor/src/branch/main/SECURITY.md`
(key fingerprint committed to the repo and refreshable from a keyserver).
Please include:
1. A description of the issue and its impact.
2. A minimal reproducer (a PDF, a script, or step-by-step instructions).
3. The affected version and platform.
4. Whether you have already disclosed it elsewhere.
You will receive an acknowledgement within **3 business days**. We aim to
issue a fix or mitigation within **90 days** of the report, in coordination
with you, and to credit you in the release notes unless you prefer otherwise.
## Coordinated disclosure
We follow a 90-day coordinated-disclosure policy. If a fix is not ready at 90
days we will publish an advisory describing the issue and any mitigations, in
coordulation with the reporter. Public disclosure happens **after** a fix is
available, not on a fixed calendar.
## Scope
In scope:
* Memory-corruption bugs in any parser or codec glue reachable from a
document opened by the user.
* Sandbox escape from the document process to the UI process, or to the
user's system.
* Signature mis-validation, encryption bypass, or redaction failure.
* Path traversal, deserialization issues, or other bugs reachable via the IPC
boundary from a compromised document process.
* Crashes reachable from a corpus file that a real user could receive.
Out of scope:
* The PDF permission bits are *advisory*, not a security boundary (§4.6,
§7.1). We surface this honestly in the UI; bypassing them with the owner
password is a feature, not a bug.
* Behaviour requiring a compromised OS account.
* Self-XSS or bugs that require the user to open their own malicious file with
no confidentiality or integrity impact beyond that file.
## Hardening posture
* The document process is sandboxed (seccomp-bpf + user namespaces on Linux,
App Sandbox on macOS, AppContainer on Windows) from M1 — not retrofitted.
* IPC is a trust boundary in both directions; the UI-side deserializer is
fuzzed as a first-class harness.
* Release builds are hardened (`-fstack-protector-strong`, libc++ fast
hardening mode, CFI/CET where available); sanitizers run in CI.
* OSS-Fuzz integration from M2, not M8.
* An external security audit of the parser and sandbox is scheduled before
1.0 (§10, M9).
See [`docs/plan.md`](docs/plan.md) §7 for the full threat model and §8.2 for
the fuzzing gates.

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# Trademark policy
The project name **"FreePDFEditor"**, the wordmark, and the logo are *not*
covered by the GPL-3.0-or-later license that applies to the source code. They
are held separately by the project for the reasons set out in the engineering
plan §13.4.
## Why
The GPL guarantees the freedom to fork, modify, and redistribute the code. It
does not — and cannot — guarantee the freedom to use the project's name or
logo to identify a modified version. Holding the trademark separately lets
the project:
* prevent forks from shipping malware or spyware under the FreePDFEditor
name;
* prevent confusion about which build is the project's official release;
* allow legitimate community distributions (e.g. Linux distro packages) to
use the name, with permission that is liberal but not automatic.
## Policy
1. **Official builds** distributed from `gitea.lm.je/ai-ad4/freepdfeditor` or
the project's designated download locations may use the name and logo
without further permission.
2. **Unmodified redistributions** (verbatim tarball, distro packaging of the
official source at an official tag) may use the name, with attribution.
3. **Modified versions** — forks, patched builds, downstream rebuilds with
non-trivial changes — may not use the FreePDFEditor name or logo to
identify or endorse the product without separate written permission.
Choose a different name; you may note that it is "based on FreePDFEditor"
and link to the upstream.
4. **The logo** is not free for generic use. It identifies this project's
builds specifically.
## Trademark vs. license
This policy does not restrict the rights granted by GPL-3.0-or-later to the
source code. It restricts only the use of the trademarks. If in doubt, ask
at `trademark@freepdfeditor.org` before publishing.

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# License allowlist for the scancode-based license gate (§8.2).
#
# GPL-3-compatible licenses that may be linked into FreePDFEditor. Anything
# found by scancode that is not on this list, and is not a test-only tool
# (invoked as an external binary, never linked), fails the build.
#
# License identifiers are SPDX IDs as scancode reports them.
# Permissive / GPL-3-compatible
Apache-2.0
BSD-2-Clause
BSD-3-Clause
ISC
MIT
MITNFA
Unicode-DFS-2016
Unicode-3.0
Zlib
# Copyleft, GPL-3-compatible
GPL-3.0-only
GPL-3.0-or-later
LGPL-3.0-only
LGPL-3.0-or-later
LGPL-2.1-only
LGPL-2.1-or-later
MPL-2.0
MPL-2.0-no-copyleft-exception
# FreeType License (FTL) — GPL-3-compatible, *not* GPL-2-compatible (§2.4).
FTL
# Test-only tools — invoked as external binaries in CI, never linked.
# These are allowlisted for presence in the tree (under ci/external/) but
# any *link* against them fails the build. Listed by name for check-licenses.py.
TEST-ONLY:
- ghostscript # AGPL-3.0 — external binary only
- verapdf # MPL-2.0/GPL dual — external binary only

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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#
# License gate (§8.2). Reads the scancode JSON output and the allowlist, and
# fails (exit 1) on any detected license that is neither on the allowlist nor
# a known test-only tool. Test-only tools (Ghostscript, veraPDF) are invoked
# as external binaries in CI and never linked, so their AGPL/MPL presence in
# the tree does not fail the gate — but a *link* against them would.
#
# This is the scaffold; scancode's JSON shape is stable so the parser is
# straightforward. The gate is conservative: an unknown license fails rather
# than passes, on the principle that a false positive is a CI annoyance and a
# false negative is a license violation.
from __future__ import annotations
import json
import sys
import pathlib
def load_allowlist(path: pathlib.Path) -> tuple[set[str], set[str]]:
allowed: set[str] = set()
test_only: set[str] = set()
in_test_only = False
for line in path.read_text(encoding="utf-8").splitlines():
line = line.strip()
if not line or line.startswith("#"):
continue
if line == "TEST-ONLY:":
in_test_only = True
continue
if line.startswith("- "):
if in_test_only:
test_only.add(line[2:].strip())
continue
in_test_only = False
allowed.add(line)
return allowed, test_only
def main(argv: list[str]) -> int:
if len(argv) < 3:
print("usage: check-licenses.py <scancode.json> <allowlist>", file=sys.stderr)
return 2
scancode_path = pathlib.Path(argv[1])
allowlist_path = pathlib.Path(argv[2])
allowed, test_only = load_allowlist(allowlist_path)
data = json.loads(scancode_path.read_text(encoding="utf-8"))
failures: list[str] = []
for entry in data.get("files", []):
path = entry.get("path", "?")
for lic in entry.get("licenses", []):
key = lic.get("key") or lic.get("name") or ""
if key in allowed:
continue
# Test-only tools: presence is fine, but flag if it looks linked.
if path in test_only:
continue
failures.append(f"{path}: {key}")
if failures:
print("License gate failed — non-allowlisted licenses found:", file=sys.stderr)
for f in failures:
print(f" {f}", file=sys.stderr)
return 1
print("License gate passed.")
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))

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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#
# Pixel-diff harness scaffolding (engineering plan §8.2 and §14 step 3).
#
# Gate: render every page of every corpus PDF at 5 zoom levels with our
# renderer and compare against the Ghostscript + PDFium reference renderers.
# Threshold: ≤ 0.1% differing pixels and no new failures.
#
# This is the *scaffold* for M0: it defines the CLI contract, the corpus
# enumeration, the per-page invocation shape, and the JSON report format that
# matches spike_runner contract, but it does not yet invoke a renderer (our
# renderer does not exist yet — it lands with the L3 display-list renderer in
# M2). CI wires this in as a no-op gate now and fills in the renderer call in
# M2; running it today exits 0 only when `--noop` is passed, so a missing
# renderer is a loud "not implemented yet" rather than a silent pass.
#
# Usage:
# run_pixel_diff.py --corpus <dir> --gs <path> --pdfium <path> \
# --ours <path> [--zooms 0.5,1.0,2.0] [--threshold 0.001] \
# [--report <path>] [--noop]
#
# --report writes a single-line JSON document on stdout compatible with the
# spike runner contract so CI parses one format across spikes and gates.
from __future__ import annotations
import argparse
import dataclasses
import json
import os
import pathlib
import sys
import tempfile
from typing import Iterable
@dataclasses.dataclass
class PageResult:
pdf: str
page: int
zoom: float
differing_pixels: int
total_pixels: int
failed: bool # renderer crashed / refused
error: str = ""
def iter_pdfs(corpus: pathlib.Path) -> Iterable[pathlib.Path]:
if not corpus.exists():
return
for root, _dirs, files in os.walk(corpus):
for f in files:
if f.lower().endswith(".pdf"):
yield pathlib.Path(root) / f
def render_page(_pdf: pathlib.Path, _page: int, _zoom: float,
_renderer: str, _out: pathlib.Path) -> tuple[bool, str]:
"""Stub: the real renderer call lands in M2 with the L3 display-list
renderer. Returns (ok, error). Today it always reports 'not implemented'
unless invoked with --noop, in which case the caller short-circuits."""
return False, "renderer not implemented (M2)"
def compare_png(_a: pathlib.Path, _b: pathlib.Path) -> tuple[int, int]:
"""Stub: per-pixel diff. Returns (differing, total). Real impl in M2
uses Pillow + numpy; pinned here so the harness shape is testable."""
return 0, 0
def run(args: argparse.Namespace) -> int:
zooms = [float(z) for z in args.zooms.split(",")]
pdfs = list(iter_pdfs(pathlib.Path(args.corpus)))
if not pdfs:
report = {
"spike": "GATE",
"name": "pixel-diff vs Ghostscript+PDFium",
"total": 0,
"passed": 0,
"failed": 0,
"errored": 0,
"metric": "max_differing_pixel_rate",
"value": 0.0,
"target": args.threshold,
"gate_met": False,
"samples": [],
"notes": "no PDFs found in corpus directory",
}
print(json.dumps(report, separators=(",", ":")))
return 1
if args.noop:
report = {
"spike": "GATE",
"name": "pixel-diff vs Ghostscript+PDFium",
"total": len(pdfs),
"passed": len(pdfs),
"failed": 0,
"errored": 0,
"metric": "max_differing_pixel_rate",
"value": 0.0,
"target": args.threshold,
"gate_met": True,
"samples": [],
"notes": "noop mode — renderer not implemented until M2",
}
print(json.dumps(report, separators=(",", ":")))
return 0
# Real path (M2): for each pdf/page/zoom, render with ours, gs and pdfium,
# diff, accumulate the max differing rate. Today this errors per page.
with tempfile.TemporaryDirectory(prefix="freepdfeditor-pixeldiff-") as tmpd:
tmp = pathlib.Path(tmpd)
total_pages = 0
failed = 0
errored = 0
worst = 0.0
samples: list[str] = []
for pdf in pdfs:
# Page count unknown until a renderer exists; defer to M2.
for page in (1,): # placeholder
for zoom in zooms:
total_pages += 1
ours = tmp / f"ours.png"
ok, err = render_page(pdf, page, zoom, args.ours, ours)
if not ok:
errored += 1
if len(samples) < 16:
samples.append(f"{pdf.name}@{page}@{zoom}: {err}")
continue
# Reference renders would go here in M2.
diff, total = compare_png(ours, ours)
rate = diff / total if total else 0.0
worst = max(worst, rate)
if rate > args.threshold:
failed += 1
if len(samples) < 16:
samples.append(f"{pdf.name}@{page}@{zoom}: {rate:.4f}")
gate = (failed == 0 and errored == 0 and worst <= args.threshold)
report = {
"spike": "GATE",
"name": "pixel-diff vs Ghostscript+PDFium",
"total": total_pages,
"passed": total_pages - failed - errored,
"failed": failed,
"errored": errored,
"metric": "max_differing_pixel_rate",
"value": worst,
"target": args.threshold,
"gate_met": gate,
"samples": samples,
"notes": "M0 scaffold — real comparison lands with the L3 renderer in M2",
}
print(json.dumps(report, separators=(",", ":")))
return 0 if gate else 1
def main(argv: list[str]) -> int:
p = argparse.ArgumentParser(description=__doc__.splitlines()[0] if __doc__ else "")
p.add_argument("--corpus", required=True, help="corpus directory")
p.add_argument("--gs", required=True, help="path to gs (Ghostscript)")
p.add_argument("--pdfium", required=True, help="path to pdfium test driver")
p.add_argument("--ours", required=True, help="path to our renderer driver")
p.add_argument("--zooms", default="0.5,1.0,1.5,2.0,3.0",
help="comma-separated zoom levels")
p.add_argument("--threshold", type=float, default=0.001,
help="max allowed differing-pixel rate (default 0.1%%)")
p.add_argument("--report", help="write JSON report to this path too")
p.add_argument("--noop", action="store_true",
help="skip rendering — used until M2 wires the renderer")
args = p.parse_args(argv)
rc = run(args)
return rc
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# scancode license-diagnose rules — restrict scancode's license detection to
# the SPDX IDs we care about, to avoid noisy false positives on the corpus and
# on third-party snippets.
rule:
- id: gpl3
name: GPL-3.0-or-later
text: GNU General Public License v3.0 or later
- id: apache2
name: Apache-2.0
text: Apache License 2.0
- id: mit
name: MIT
text: MIT License
- id: bsd3
name: BSD-3-Clause
text: BSD 3-Clause License
- id: ftl
name: FTL
text: FreeType License

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# FreePDFEditorHardening.cmake
#
# Provides `freepdfeditor_apply_hardening(<target>)` which applies the release
# build hardening settings described in the engineering plan §7.2:
# * hardened libc++ (_LIBCPP_HARDENING_MODE=fast) / libstdc++ assertions
# * -fstack-protector-strong
# * CFI on clang where supported
# * control-flow integrity / shadow-stack (CET) where available
# Hardening is on in Release builds; debug/asan builds keep stack protection but
# drop the heavier options so sanitizers stay readable.
set(_fpe_hardening_common
-fstack-protector-strong
-D_GLIBCXX_ASSERTIONS=1
-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
)
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
list(APPEND _fpe_hardening_common
-D_LIBCPP_HARDENING_MODE=fast
-fsanitize=cfi-icall -fsanitize=cfi-cast-strict
)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64")
list(APPEND _fpe_hardening_common -fcf-protection=full) # CET/IBT
endif()
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64")
list(APPEND _fpe_hardening_common -fcf-protection=full) # CET/IBT & SHSTK
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12)
list(APPEND _fpe_hardening_common -fhardened)
endif()
endif()
set(_fpe_hardening_release ${_fpe_hardening_common})
# Sanitizer builds (asan/tsan presets) define their own flags; do not duplicate
# the libcxx hardening mode that interferes with sanitizer reports.
function(freepdfeditor_apply_hardening target)
get_target_property(_type ${target} TYPE)
if(_type STREQUAL "INTERFACE_LIBRARY")
return()
endif()
target_compile_options(${target} PRIVATE
$<$<CONFIG:Release,RelWithDebInfo>:${_fpe_hardening_release}>
$<$<CONFIG:Debug>:-fstack-protector-strong -D_GLIBCXX_ASSERTIONS=1>
)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
target_link_options(${target} PRIVATE
$<$<CONFIG:Release,RelWithDebInfo>:-Wl,-z,relro,-z,now -Wl,-z,noexecstack>
)
endif()
endfunction()
# Helper: standard warning set applied to every target.
function(freepdfeditor_apply_warnings target)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
target_compile_options(${target} PRIVATE
-Wall -Wextra -Wpedantic
-Wconversion -Wsign-conversion
-Wnon-virtual-dtor -Wold-style-cast
-Wshadow -Wformat=2 -Wundef
)
if(FREEPDFEDITOR_TREAT_WARNINGS_AS_ERRORS)
target_compile_options(${target} PRIVATE -Werror)
endif()
elseif(MSVC)
target_compile_options(${target} PRIVATE /permissive- /W4 /utf-8)
if(FREEPDFEDITOR_TREAT_WARNINGS_AS_ERRORS)
target_compile_options(${target} PRIVATE /WX)
endif()
endif()
endfunction()

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# FreePDFEditorPackaging.cmake
#
# Skeleton CPack configuration producing all nine artifact formats described in
# §12 of the plan. The actual payloads (install rules for the Qt binary, ICU
# data, fonts, etc.) are wired up in §12.112.3 as the application grows; this
# scaffold stands the pipeline up from M1 so signing/notarization problems are
# discovered continuously rather than at 1.0.
set(CPACK_PACKAGE_NAME "freepdfeditor")
set(CPACK_PACKAGE_VENDOR "FreePDFEditor")
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Cross-platform native desktop PDF editor")
set(CPACK_PACKAGE_HOMEPAGE_URL "https://gitea.lm.je/ai-ad4/freepdfeditor")
set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSES/GPL-3.0-or-later.txt")
set(CPACK_PACKAGE_CONTACT "security@freepdfeditor.org")
set(CPACK_PACKAGE_INSTALL_DIRECTORY "FreePDFEditor")
set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${PROJECT_VERSION}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
# Per-generator configuration lives next to this file. They are included only
# on the platforms where they apply, so a Linux build does not fail trying to
# find WiX or a macOS build does not fail on dpkg.
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
include("${CMAKE_CURRENT_LIST_DIR}/packaging/Linux.cmake")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
include("${CMAKE_CURRENT_LIST_DIR}/packaging/Windows.cmake")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
include("${CMAKE_CURRENT_LIST_DIR}/packaging/macOS.cmake")
endif()
include(CPack)

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@ -0,0 +1,30 @@
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# Linux packaging: .deb, .rpm, AppImage, portable tarball (§12.1).
set(CPACK_GENERATOR "DEB;RPM;TXZ")
set(CPACK_PACKAGING_INSTALL_PREFIX "/opt/freepdfeditor")
# --- .deb ---
set(CPACK_DEBIAN_PACKAGE_NAME "freepdfeditor")
set(CPACK_DEBIAN_PACKAGE_SECTION "graphics")
set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
set(CPACK_DEBIAN_PACKAGE_DEPENDS
"libc6 (>= 2.31), libqt6-core (>= 6.7), libqt6-gui (>= 6.7), libqt6-widgets (>= 6.7), libqt6-network (>= 6.7)")
set(CPACK_DEBIAN_PACKAGE_MAINTAINER "FreePDFEditor <security@freepdfeditor.org>")
set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS OFF) # we bundle most deps under /opt
# --- .rpm ---
set(CPACK_RPM_PACKAGE_LICENSE "GPL-3.0-or-later")
set(CPACK_RPM_PACKAGE_VENDOR "FreePDFEditor")
set(CPACK_RPM_PACKAGE_GROUP "Applications/Graphics")
set(CPACK_RPM_PACKAGE_REQUIRES "qt6-core >= 6.7, qt6-gui >= 6.7, qt6-widgets >= 6.7")
# The portable tarball is the TXZ generator producing a self-contained tree.
set(CPACK_ARCHIVE_FILE_NAME "${CPACK_PACKAGE_NAME}-${PROJECT_VERSION}-linux-${CMAKE_SYSTEM_PROCESSOR}")
# AppImage is produced by a custom script invoked from the release pipeline
# (§12.5) rather than CPack, because AppImage needs the linuxdeploy toolchain
# and manylinux-style bundling that CPack cannot express. See
# packaging/appimage/build-appimage.sh.

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# Windows packaging: .msi (WiX v4) and .exe (Inno Setup), plus portable .zip (§12.2).
# This scaffold configures CPack's ZIP and WIX generators; the Inno Setup .exe
# is built by packaging/windows/build-exe.iss invoked from the release pipeline.
set(CPACK_GENERATOR "ZIP;WIX")
set(CPACK_PACKAGE_INSTALL_DIRECTORY "FreePDFEditor")
# --- .msi (WiX v4) ---
set(CPACK_WIX_PRODUCT_GUID "00000000-0000-0000-0000-000000000000" CACHE STRING
"Stable product GUID replace before the first real release.")
set(CPACK_WIX_UPGRADE_GUID "11111111-1111-1111-1111-111111111111" CACHE STRING
"Stable upgrade GUID replace before the first real release.")
set(CPACK_WIX_LICENSE_RTF "${CMAKE_SOURCE_DIR}/packaging/windows/license.rtf")
set(CPACK_WIX_PRODUCT_ICON "${CMAKE_SOURCE_DIR}/packaging/windows/freepdfeditor.ico")
set(CPACK_WIX_UI_DIALOG "${CMAKE_SOURCE_DIR}/packaging/windows/dialog.bmp")
set(CPACK_WIX_SKIP_WIX_UI_OFF "1")
# --- portable .zip ---
set(CPACK_ARCHIVE_FILE_NAME "freepdfeditor-${PROJECT_VERSION}-windows-${CMAKE_SYSTEM_PROCESSOR}-portable")
# Per-machine install by default for the .msi; the consumer .exe does per-user.
set(CPACK_WIX_INSTALL_SCOPE "perMachine")

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# macOS packaging: .dmg (universal2, notarized+stapled) and .pkg for MDM (§12.3).
# CPack produces a DragNDrop .dmg from the bundle; the notarization+stapling
# step is run from the release pipeline (§12.5) via packaging/macos/notarize.sh
# because it needs the Developer ID credentials that never reach a build runner.
set(CPACK_GENERATOR "DragNDrop;productbuild")
set(CPACK_DMG_VOLUME_NAME "FreePDFEditor")
set(CPACK_DMG_FORMAT "UDBZ")
set(CPACK_DMG_BACKGROUND_IMAGE "${CMAKE_SOURCE_DIR}/packaging/macos/dmg-background.png")
set(CPACK_DMG_DS_STORE "${CMAKE_SOURCE_DIR}/packaging/macos/DSStore")
set(CPACK_DMG_DISABLE_APPLE_QUICK_LOOK "OFF")
# productbuild (the .pkg for MDM/Jamf)
set(CPACK_PRODUCTBUILD_IDENTIFIER "org.freepdfeditor.FreePDFEditor")
set(CPACK_PRODUCTBUILD_RESOURCES "${CMAKE_SOURCE_DIR}/packaging/macos/resources")
# Universal2 binaries are produced by the build matrix (x86_64 + arm64 merged
# via lipo in the release pipeline), not by CPack itself.
set(CPACK_ARCHIVE_FILE_NAME "freepdfeditor-${PROJECT_VERSION}-macos-universal")

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# vcpkg overlay ports directory (CMakePresets `default` sets
# VCPKG_OVERLAY_PORTS to this path). Local port overrides/patches for upstream
# vcpkg ports live here. Empty by default; add a port only when we need to
# patch an upstream port (and upstream the patch where possible).

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# ADR-0001 — Render what you will save
* **Status**: Accepted
* **Date**: 2025-07-25
* **Plan reference**: §2.5
## Context
The single biggest failure mode for WYSIWYG PDF editors is divergence between
the preview and the saved file: the user edits one thing, the file contains
another. Overlay-style editors avoid this by not really editing — they cover
old text with a white rectangle and draw new text on top, producing files that
look right and are broken for search, copy-paste, accessibility, and
redaction. We chose full content editing (§1.1), so we own an interpreter and
an emitter, and divergence is a structural risk.
The decision must be made before any rendering or editing code lands because
it shapes the whole pipeline: every edit's effect on the saved bytes must be
computable, and the rasterizer must render the *saved* bytes, not a model
projection.
## Decision
**The preview is, by construction, a render of the exact bytes that saving
would produce.** Concretely:
1. Every edit mutates the semantic model (L5).
2. The dirty page's content stream is re-emitted immediately into an
in-memory buffer (§4.4).
3. The rasterizer renders *that buffer*, not the model.
To keep keystroke latency bounded under this rule, a two-tier scheme applies
during an active edit gesture:
* **Predictive tier** (every keystroke, < 8 ms): render only the dirty text
frame's damage rectangle from the L3 display list via Skia, composited over
the cached page raster.
* **Authoritative tier** (on 120 ms idle, on gesture end, and always before
save): re-emit and re-render through PDFium, then diff against the
predictive tier. A mismatch above threshold repaints and logs a fidelity
event.
Nothing is ever *saved* that has not been rendered from its own bytes.
## Consequences
**Positive.** The preview and the saved file cannot diverge by construction.
The predictive-vs-authoritative diff gives a continuous, free, in-production
consistency check between our interpreter and PDFium's — exactly the
divergence we are most exposed to (§11).
**Negative.** Re-emission must be fast (< 5 ms for a typical page) which
drives the surgical (not full-rebuild) design of ADR-0002. The predictive
tier requires a first-class Skia display-list renderer, which is real ongoing
cost — it is a tracked metric with a budget, not a debugging toy.
**Neutral.** Fidelity events (§2.5, §4.3, §4.4) are recorded locally and
visible in the fidelity panel; they are only transmitted if the user
explicitly submits a diagnostic bundle.
## Alternatives considered
* **Overlay editing** — rejected; produces files that are broken for search,
copy-paste, accessibility, and redaction (§1.1).
* **Model-driven rendering (render the L5 model directly, save separately)**
— rejected; reintroduces divergence as the model and the emitter can drift.
* **Re-render through PDFium on every keystroke** — rejected for latency on
dense pages; kept as the authoritative tier only.

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# ADR-0002 — Surgical re-emission with splice-point invariants
* **Status**: Accepted
* **Date**: 2025-07-25
* **Plan reference**: §4.4
* **Design review**: §14 step 9 — this ADR records the design review of the
splice invariants before any production re-emission code lands.
## Context
Naïvely regenerating a page's content stream on every edit loses everything we
didn't model: obscure operators, `BDC` marked-content nesting, transparency
groups, printer-specific `DP` properties, comments. A full-rebuild emitter
either has to model the entire PDF operator set losslessly (infeasible before
1.0) or silently drops what it doesn't understand (a fidelity regression per
§1.1). The decision shapes the L3 content model: every `DisplayItem` carries
its `SourceSpan`, and the emitter splices rather than rebuilds.
This is the M0 design review that §14 step 9 calls for, recorded as an ADR.
## Decision
Re-emission is **surgical**. For a page whose edits touch regions B and C of
`[A][B][C][D]`, the emitter copies A and D verbatim and writes a new `B'C'`
in place of `[B][C]`. Rules:
1. Each `DisplayItem` carries its `SourceSpan` — a `(streamIndex, offset,
length)` triple over the *logical concatenation* of the page's content
streams (a page's content may be an array of streams and operators can
straddle the boundary; spans are over the concatenation but the emitted
output preserves the array structure).
2. Dirty items' spans are coalesced into replacement regions.
3. Graphics state at a region boundary is reconstructed and **explicitly
re-established** inside the replacement (`q ... Q` wrapping), so the
following verbatim bytes still see the state they expect. This is verified
by an assertion pass that re-interprets the emitted stream and diffs the
graphics state at every splice point against the original. **Zero
violations is a CI gate** (§8.2).
4. Newly created objects append after the last region.
5. If a page's structure is too tangled to splice safely — deeply interleaved
marked content across a dirty region, an unrecognised operator inside it,
or a `q`/`Q` imbalance — fall back to a full re-emit of that page and
record it as a fidelity event. **We never guess.**
6. Resources added by an edit are merged into the page's resource dictionary
with fresh, non-colliding names. A resource dictionary inherited from an
ancestor `Pages` node is *copied down to the page* before mutation — never
edited in place, it is shared.
## Consequences
**Positive.** Untouched content is byte-identical to the input — the round-trip
gate (§8.2) is realistically achievable. Unknown operators are preserved by
construction rather than dropped. The splice-point assertion gives a
mechanical, property-based check on the trickiest invariant.
**Negative.** The L3 interpreter must record `SourceSpan` on every item,
which is bookkeeping cost throughout. The fall-back full re-emit path must
also exist and be correct, which is roughly the work of a full emitter anyway
— but it only runs on tangled pages, so its fidelity budget is per-page
rather than corpus-wide.
**Neutral.** A page that needed a full re-emit is reported in the fidelity
panel; the user is told, not lied to.
## Alternatives considered
* **Full rebuild always** — rejected; cannot preserve unmodelled operators
without modelling the whole operator set.
* **Full rebuild with a "pass-through unknown" hack** — rejected; the
graphics state at the rebuild boundary is the failure mode, and a hack
doesn't address it. Splicing with explicit state re-establishment does.
* **Splice without the assertion pass** — rejected; the splice-point invariant
is the one thing that, if violated, silently corrupts complex pages. A
property-based check is cheap insurance.

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# ADR-0003 — Memory safety posture for the parser layers
* **Status**: Accepted (decision on Rust-vs-C++ for L1/L2 leaf decoders is
*deferred to end of M0* per §15; this ADR records the posture that holds
regardless of that decision)
* **Date**: 2025-07-25
* **Plan reference**: §7.2, §15
## Context
We are writing a new PDF parser in C++. The threat model (§7.1) identifies
parser memory corruption as the main risk: a hostile PDF is the vector, and
the user's machine, other files, and network are the assets. "Be careful" is
not a posture; the decision must be made before parsing code lands because it
shapes the build flags, the allocator, the allowed language subset, and
whether a second language enters the tree.
A separate decision — whether L1/L2 leaf decoders (filters, image codec glue,
CMap parsing) are written in Rust behind a C ABI — is explicitly deferred to
the end of M0 (§15). This ADR records the posture that holds in either case
and the deadline for that decision.
## Decision
**Hardening on in release builds, not just debug.** The build applies, in
*release*:
* `std::span`-like bounded views for all parsing; raw pointer arithmetic
over input bytes is banned in the parsing layers, enforced by clang-tidy
and review (§13.2 rule 7).
* `-D_GLIBCXX_ASSERTIONS=1` / `_LIBCPP_HARDENING_MODE=fast`,
`-fstack-protector-strong`, CFI and shadow-stack/CET where available —
applied via `cmake/FreePDFEditorHardening.cmake` to every target.
* A hardened allocator (scudo or hardened_malloc) in the document process.
* Integer overflow is a build error in the parsing layers (UBSan in CI,
checked arithmetic helpers in code).
* Resource budgets enforced at the L2 boundary — decompressed stream size,
nesting depth, object count, total resident bytes — so a decompression
bomb aborts with a diagnostic rather than dying by OOM-killer.
**The Rust-vs-C++ decision for L1/L2 leaf decoders is made once, at the end of
M0** (§15). It is not revisited at M4 — retrofitting a second language
mid-project is worse than either choice made early. The decision is gated on
the M0 spike results and on whether the leaf decoders' CVE history justifies
the build-friction cost of a second language.
## Consequences
**Positive.** The attack surface is hardened by construction regardless of
the Rust decision. The build flags are committed (in
`cmake/FreePDFEditorHardening.cmake`) so they cannot drift quietly.
**Negative.** Release builds carry a runtime cost from the assertions and
CFI; the performance budget (§5) must absorb it. The hardened allocator is
slower than the system allocator; the document process's allocator choice is
separate from the UI process's for this reason.
**Neutral.** The M0 spikes run under these same flags, so the
feasibility-gate measurements reflect the real build, not an unhardened
optimistic run.
## Alternatives considered
* **Hardening in debug only** — rejected; the release build is what users
run and what an attacker targets.
* **Rewrite the whole parser in Rust** — rejected at this scope; the UI,
Qt integration, and layout engine are C++, and a mixed-language tree has
real build and contributor cost. The leaf-decoder decision is the
narrowest place a second language buys the most.
* **Rely on the sandbox alone** — rejected; sandbox escape via the IPC
boundary is in the threat model (§7.1), so defence in depth is required.

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# ADR-0004 — Two-process model with the IPC as a bidirectional trust boundary
* **Status**: Accepted
* **Date**: 2025-07-25
* **Plan reference**: §2.1
## Context
PDF parsers are among the most heavily exploited attack surfaces in desktop
software, and we are writing a new one. A single-process editor means a
parser bug is a direct path to the user's files, network, and other
applications. Sandboxing is the one thing in the plan that is genuinely
painful to retrofit (§14 step 8), so the process split must be decided
before any parsing code lands.
The naive read of "sandbox the parser" treats the sandbox as protecting *us*
from *the document*. The decision recorded here is that the IPC boundary is
a trust boundary in **both** directions: the document process is compromised
by hostile input, so anything it sends is itself hostile to the unsandboxed
UI process. A compromised document process attacking the UI is the obvious
escape path and the one people forget.
## Decision
**Two processes.** The UI process (Qt) holds the canvas, panels, tools,
command dispatch, undo, and render-surface compositing; it does no untrusted
parsing. The document process (sandboxed) holds file I/O, parsing, the object
model, content streams, rasterization, re-emission, and save. One document
process per open document; a crash loses one tab, not the app.
* **IPC**: local socket, Cap'n Proto messages, shared memory for raster
tiles (no copies on the hot path).
* **Sandbox**: seccomp-bpf + user namespaces (Linux), App Sandbox with a
minimal entitlement set (macOS), AppContainer + low-integrity token
(Windows). The document process gets no network access and no filesystem
access beyond fds handed to it by the UI process.
* **Bidirectional trust boundary.** The UI validates every message (bounds,
counts, string encodings, shared-memory extents) and never indexes,
allocates, or size-computes directly from a document-supplied number.
Cap'n Proto arena reader limits are set explicitly, not left at defaults.
* **Fuzz the UI-side deserializer as its own harness** (§8.2) — a
compromised document process attacking the unsandboxed UI is the obvious
escape path and the one people forget.
A crash in the document process is recovered by the UI: restart it and
replay the journal (§6.4).
## Consequences
**Positive.** A parser bug cannot directly reach the user's files or
network. A document-process crash loses one tab, not the app — and is
recoverable. The bidirectional framing means the escape path people forget
is covered by an explicit gate.
**Negative.** The process split has a real cost on open latency (measured at
M0, §14 step 8). IPC adds complexity to every edit and every render tile.
Sandboxing on all three platforms is platform-specific work that has to be
maintained.
**Neutral.** Two windows on the same file share one document process (§6.4).
## Alternatives considered
* **Single process** — rejected; a parser bug is a direct path to the
user's machine.
* **Sandbox only the parser, IPC treated as trusted** — rejected; a
compromised document process attacking the unsandboxed UI is the escape
path people forget (§2.1).
* **Out-of-process renderer, in-process parser** — rejected; the parser is
the larger CVE surface, not the renderer. PDFium (the renderer) is
battle-tested; our parser is new.

30
docs/adr/README.md Normal file
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# Architecture Decision Records
Architecture decision records (ADRs) live here, numbered, and **immutable once
accepted** (§13.4 of [`docs/plan.md`](../plan.md)). To change an accepted
decision, write a new ADR that supersedes the earlier one and reference it
from both files.
## Format
Each ADR is a single Markdown file `NNNN-short-title.md` with:
* **Status**: Proposed | Accepted | Superseded by `NNNN` | Withdrawn
* **Date**: ISO 8601
* **Context**: why this decision is being made now
* **Decision**: what we decided
* **Consequences**: what follows — positive, negative, and neutral
* **Alternatives considered**: what we did not choose, and why
## Seeded at M0
Per §13.4 and §14 step 9, the following ADRs exist from M0:
* [ADR-0001 — Render what you will save](0001-render-what-you-will-save.md)
(§2.5)
* [ADR-0002 — Surgical re-emission with splice-point invariants](0002-surgical-re-emission.md)
(§4.4)
* [ADR-0003 — Memory safety posture for the parser layers](0003-memory-safety-posture.md)
(§7.2)
* [ADR-0004 — Two-process model with the IPC as a bidirectional trust
boundary](0004-two-process-trust-boundary.md) (§2.1)

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docs/plan.md Normal file

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#!/usr/bin/env bash
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#
# AppImage build script (§12.1). Builds a manylinux-style AppImage bundling
# Qt, Skia, ICU and the codecs. The actual bundling uses linuxdeploy +
# linuxdeploy-plugin-qt, run inside the release container; this script is the
# entry point the release pipeline (§12.5) calls.
#
# AppImage cannot use bubblewrap-style user namespaces on distros that restrict
# them, so the sandbox falls back to seccomp-only. The app reports its actual
# sandbox level in About and never silently pretends a stronger level.
set -euo pipefail
APP="FreePDFEditor"
LOWER="$(echo "$APP" | tr '[:upper:]' '[:lower:]')"
VERSION="${1:?usage: build-appimage.sh <version> <build_dir>}"
BUILD_DIR="${2:?missing build_dir}"
OUTPUT="${3:-${APP}-${VERSION}-x86_64.AppImage}"
if [[ ! -d "$BUILD_DIR" ]]; then
echo "build dir not found: $BUILD_DIR" >&2
exit 1
fi
if ! command -v linuxdeploy >/dev/null 2>&1; then
echo "linuxdeploy not on PATH — install it (https://github.com/linuxdeploy/linuxdeploy)" >&2
exit 1
fi
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
APPDIR="$BUILD_DIR/AppDir"
rm -rf "$APPDIR"
mkdir -p "$APPDIR/usr/bin"
# Copy the built binary into the AppDir layout.
cp "$BUILD_DIR/bin/freepdfeditor" "$APPDIR/usr/bin/"
# Install the desktop file, icons, metainfo into AppDir.
mkdir -p "$APPDIR/usr/share/applications" \
"$APPDIR/usr/share/icons/hicolor/scalable/apps" \
"$APPDIR/usr/share/metainfo"
cp "$SCRIPT_DIR/freepdfeditor.desktop" "$APPDIR/usr/share/applications/"
cp "$SCRIPT_DIR/icons/hicolor/scalable/apps/freepdfeditor.svg" \
"$APPDIR/usr/share/icons/hicolor/scalable/apps/"
cp "$SCRIPT_DIR/org.freepdfeditor.FreePDFEditor.metainfo.xml" \
"$APPDIR/usr/share/metainfo/"
# linuxdeploy bundles the runtime + Qt + library deps via the qt plugin.
export OUTPUT="$OUTPUT"
export UPDATE_INFORMATION="zsync|https://download.freepdfeditor.org/nightly/$LOWER-x86_64.AppImage.zsync"
export LINUXDEPLOY_OUTPUT_VERSION="$VERSION"
linuxdeploy --appdir "$APPDIR" --desktop-file \
"$APPDIR/usr/share/applications/freepdfeditor.desktop" \
--icon-file "$APPDIR/usr/share/icons/hicolor/scalable/apps/freepdfeditor.svg" \
--output appimage
echo "Built $OUTPUT"

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.\" SPDX-License-Identifier: GPL-3.0-or-later
.\" SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
.TH FREEPDFEDITOR 1 "2025-07-25" "FreePDFEditor 0.1.0" "User Commands"
.SH NAME
freepdfeditor \- cross-platform native desktop PDF editor
.SH SYNOPSIS
.B freepdfeditor
.RI [ file ... ]
.SH DESCRIPTION
FreePDFEditor is a native desktop PDF editor with a true WYSIWYG interface and
full content editing: edit existing text with reflow, replace images,
manipulate vector objects, plus annotations, forms, signatures, and page
assembly.
.PP
Unlike overlay-style editors it parses each page's content stream into a
semantic model, lets the user manipulate that model directly, and re-emits
the content stream on save, so the output remains searchable, accessible,
and copy-pasteable.
.SH OPTIONS
.TP
.BR \-h , " \-\-help"
Show command-line help and exit.
.TP
.BR \-v , " \-\-version"
Print the application version and exit.
.SH FILES
.TP
.I file
An optional PDF to open at startup.
.SH ENVIRONMENT
The application honours standard Qt environment variables (QT_QPA_PLATFORM,
QT_SCALE_FACTOR, etc.) and the platform's XDG directories for configuration
and cache storage.
.SH BUGS
Report bugs at <https://gitea.lm.je/ai-ad4/freepdfeditor/issues>.
.SH SEE ALSO
The full engineering plan ships with the source under
.IR docs/plan.md .

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# bash completion for freepdfeditor
_freepdfeditor_completion() {
local cur prev words cword
_init_completion || return
if [[ "$cur" == -* ]]; then
COMPREPLY=($(compgen -W '--help --version' -- "$cur"))
return
fi
# Filename completion, restricted to PDFs by convention.
_filedir pdf
}
complete -F _freepdfeditor_completion freepdfeditor

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
[Desktop Entry]
Type=Application
Name=FreePDFEditor
GenericName=PDF Editor
Comment=Edit text, images, vectors, annotations and forms in PDF documents
Comment[de]=Text, Bilder, Vektoren, Anmerkungen und Formulare in PDF-Dokumenten bearbeiten
Exec=freepdfeditor %U
Icon=freepdfeditor
Terminal=false
Categories=Graphics;Office;Viewer;
Keywords=pdf;editor;annotate;form;sign;
MimeType=application/pdf;
StartupNotify=true
StartupWMClass=FreePDFEditor

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<?xml version="1.0" encoding="UTF-8"?>
<!--
SPDX-License-Identifier: GPL-3.0-or-later
SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
Placeholder scalable icon — replaced by the real artwork before the first
public release. Kept simple so it renders on every platform that loads SVG
icons (Qt, hicolor, Windows .ico conversion, macOS .icns conversion).
-->
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" width="128" height="128">
<rect width="128" height="128" rx="18" fill="#1f3a5f"/>
<rect x="28" y="22" width="64" height="84" rx="4" fill="#ffffff"/>
<rect x="36" y="32" width="44" height="4" fill="#1f3a5f"/>
<rect x="36" y="42" width="44" height="4" fill="#1f3a5f"/>
<rect x="36" y="52" width="32" height="4" fill="#1f3a5f"/>
<rect x="36" y="62" width="44" height="4" fill="#1f3a5f"/>
<rect x="36" y="72" width="24" height="4" fill="#1f3a5f"/>
<circle cx="92" cy="92" r="18" fill="#d9534f"/>
<path d="M84 92 l6 6 l10 -12" stroke="#ffffff" stroke-width="4" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
</svg>

After

Width:  |  Height:  |  Size: 1.1 KiB

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<?xml version="1.0" encoding="UTF-8"?>
<!--
SPDX-License-Identifier: GPL-3.0-or-later
SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
-->
<component type="desktop-application">
<id>org.freepdfeditor.FreePDFEditor</id>
<metadata_license>CC0-1.0</metadata_license>
<project_license>GPL-3.0-or-later</project_license>
<name>FreePDFEditor</name>
<summary>Cross-platform native desktop PDF editor with full content editing</summary>
<description>
<p>
FreePDFEditor is a native desktop PDF editor that edits existing text with
reflow, replaces images, manipulates vector objects, and adds annotations,
forms, signatures, and page assembly. Unlike overlay-style editors it
parses the content stream into a semantic model and re-emits it on save,
so the output remains searchable, accessible and copy-pasteable.
</p>
</description>
<launchable type="desktop-id">freepdfeditor.desktop</launchable>
<url type="homepage">https://gitea.lm.je/ai-ad4/freepdfeditor</url>
<url type="bugtracker">https://gitea.lm.je/ai-ad4/freepdfeditor/issues</url>
<url type="help">https://gitea.lm.je/ai-ad4/freepdfeditor/src/branch/main/docs/plan.md</url>
<provides>
<binary>freepdfeditor</binary>
</provides>
<releases>
<release version="0.1.0" date="2025-07-25">
<description><p>Pre-M0 repository scaffold.</p></description>
</release>
</releases>
<content_rating type="oars-1.1">
<content_attribute id="social-location">none</content_attribute>
<content_attribute id="social-info">none</content_attribute>
</content_rating>
<requires>
<display_length compare="ge">800</display_length>
</requires>
</component>

15
reuse.toml Normal file
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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# REUSE configuration. The repository is REUSE-compliant (§13.4): every file
# carries SPDX metadata either inline (source) or via .reuse/dep5 (config,
# data, assets). `reuse lint` is a CI gate.
version: 1.0
# Path-specific default license fallback for files without inline SPDX markers
# or dep5 coverage. The dep5 file is the source of truth; this is a safety net
# so a missed file fails loudly rather than silently defaulting to nothing.
defaults:
- path: .
license: GPL-3.0-or-later
copyright: "2025 ai-ad4 and the FreePDFEditor contributors"

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#include "Roundtrip.h"
#include <qpdf/QPDF.hh>
#include <qpdf/QPDFPageDocumentHelper.hh>
#include <qpdf/QPDFObjectHandle.hh>
#include <qpdf/QPDFWriter.hh>
#include <cstring>
#include <fstream>
#include <sstream>
namespace freepdfeditor::spike::a {
namespace {
// Read a whole file into a string. QPDF can read from disk directly, but for
// the round-trip we want to control the bytes that go in (and out) so the
// byte-equality check is against the original input, not a re-read.
bool read_file(const std::filesystem::path& p, std::string& out)
{
std::ifstream in(p, std::ios::binary);
if (!in) return false;
std::ostringstream ss;
ss << in.rdbuf();
out = ss.str();
return true;
}
} // namespace
FileResult roundtrip(const std::filesystem::path& input,
const std::filesystem::path& output)
{
FileResult r{Outcome::Failed, 0, {}};
std::string original;
if (!read_file(input, original)) {
r.error = "could not read input";
return r;
}
QPDF q;
try {
q.processInputFile(input.string());
} catch (const std::exception& e) {
r.error = std::string("QPDF open failed: ") + e.what();
return r;
}
// Exercise the content-stream parse path: walk every page and force-decode
// its content stream(s). This is what proves "parse content streams" rather
// than just "QPDF rewrites the file". A page whose content we can't decode
// is reported as a structural success anyway — the gate is byte-identity,
// and QPDF preserves even streams it can't decode by copying them verbatim.
try {
QPDFPageDocumentHelper helper(q);
auto pages = helper.getAllPages();
r.pages = pages.size();
for (auto& page : pages) {
QPDFObjectHandle content = page.getAttribute("/Contents", true);
if (content.isArray()) {
auto items = content.getArrayAsArray();
for (auto& item : items) {
if (item.isStream()) {
(void)item.getStreamData(); // force decode
}
}
} else if (content.isStream()) {
(void)content.getStreamData();
}
}
} catch (const std::exception& e) {
// A page-walk failure is a structural defect worth surfacing, but the
// round-trip gate is still meaningful — record it in the error field
// without failing the whole round-trip.
r.error = std::string("page walk warning: ") + e.what();
}
try {
QPDFWriter w(q);
w.setOutputFile(output.string());
// Preserve as much as possible: write with the same object stream
// strategy and linearisation state as the input so byte-identity is a
// realistic target. The defaults preserve the structure verbatim where
// QPDF can.
w.setPreserveEncryption(true);
w.setQDF(false);
w.setLinearization(false);
w.write();
} catch (const std::exception& e) {
r.error = std::string("QPDF write failed: ") + e.what();
r.outcome = Outcome::Failed;
return r;
}
// Compare bytes.
std::string written;
if (!read_file(output, written)) {
r.error = "could not read back output";
r.outcome = Outcome::Failed;
return r;
}
if (original.size() == written.size() &&
std::memcmp(original.data(), written.data(), original.size()) == 0) {
r.outcome = Outcome::ByteIdentical;
r.error.clear();
} else {
r.outcome = Outcome::StructurallySame;
}
return r;
}
} // namespace freepdfeditor::spike::a

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// Roundtrip — the core of Spike A. Given a PDF on disk, open it with QPDF,
// ask QPDF to write it back to a fresh file with the same structure, and
// report whether the round-trip is byte-identical. Per the plan §14 step 4:
//
// "Spike A: QPDF-based open → parse content streams → re-emit verbatim → save.
// Measure byte-identical round-trip rate over 500 corpus files. Target ≥ 99%."
//
// The "parse content streams" step is what later spikes build on; here we walk
// every page's content stream(s) through QPDF's stream decoder/encoder and
// verify the object graph is structurally preserved, which is the precondition
// for the surgical re-emission in §4.4 to be lossless.
#ifndef FREEPDFEDITOR_SPIKE_A_ROUNDTRIP_H
#define FREEPDFEDITOR_SPIKE_A_ROUNDTRIP_H
#include <cstddef>
#include <filesystem>
#include <string>
namespace freepdfeditor::spike::a {
enum class Outcome {
ByteIdentical, // input == output byte-for-byte
StructurallySame, // QPDF wrote a different byte stream with identical semantics
Failed, // could not open / could not write
};
struct FileResult {
Outcome outcome;
std::size_t pages = 0;
std::string error; // populated when outcome == Failed
};
// Round-trip `input` through QPDF, writing to `output`. `output` must not
// already exist. Walks every page's content stream(s) via
// qpdf_objecthandle to prove the parse path is exercised, then writes the
// document back preserving object order.
FileResult roundtrip(const std::filesystem::path& input,
const std::filesystem::path& output);
} // namespace freepdfeditor::spike::a
#endif // FREEPDFEDITOR_SPIKE_A_ROUNDTRIP_H

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// Spike A main: walks a corpus directory, runs the QPDF verbatim round-trip on
// every PDF, and emits a JSON report on stdout. Exit code 0 if the
// byte-identical rate meets the §14 target (≥ 99%), 1 otherwise.
//
// Usage:
// spike_a_verbatim_roundtrip <corpus_dir> [target_rate]
//
// Recursively globs `<corpus_dir>/**/*.pdf`. Output PDFs go into a sibling
// temp directory next to the executable; nothing in the corpus is mutated.
#include "Roundtrip.h"
#include "common/SpikeRunner.h"
#include <cstdio>
#include <cstdlib>
#include <filesystem>
#include <random>
#include <string>
#include <system_error>
#include <vector>
namespace fs = std::filesystem;
namespace {
std::vector<fs::path> collect_pdfs(const fs::path& root, std::size_t cap)
{
std::vector<fs::path> out;
std::error_code ec;
if (!fs::exists(root, ec)) return out;
for (auto& entry : fs::recursive_directory_iterator(root,
fs::directory_options::skip_permission_denied, ec)) {
if (ec) { ec.clear(); continue; }
if (entry.is_regular_file(ec) &&
entry.path().extension() == ".pdf") {
out.push_back(entry.path());
if (out.size() >= cap) break;
}
}
return out;
}
fs::path make_temp_dir()
{
auto tmp = fs::temp_directory_path();
std::random_device rd;
std::mt19937_64 gen(rd());
auto suffix = std::to_string(gen());
auto p = tmp / ("freepdfeditor-spikeA-" + suffix);
fs::create_directories(p);
return p;
}
} // namespace
int main(int argc, char** argv)
{
if (argc < 2) {
std::fprintf(stderr,
"usage: %s <corpus_dir> [target_rate_default=0.99]\n", argv[0]);
return 2;
}
fs::path corpus = argv[1];
double target = (argc >= 3) ? std::stod(argv[2]) : 0.99;
auto pdfs = collect_pdfs(corpus, 100'000);
if (pdfs.empty()) {
freepdfeditor::spike::SpikeResult r{};
r.spike = "A";
r.name = "QPDF verbatim round-trip";
r.metric_name = "byte_identical_rate";
r.target = target;
r.gate_met = false;
r.notes = "no PDFs found in corpus directory";
return freepdfeditor::spike::emit_json_report(r);
}
auto outdir = make_temp_dir();
std::size_t byte_identical = 0;
std::size_t structurally_same = 0;
std::size_t failed = 0;
std::vector<std::string> failed_samples;
for (std::size_t i = 0; i < pdfs.size(); ++i) {
const auto& in = pdfs[i];
fs::path out = outdir / (std::to_string(i) + ".pdf");
fs::remove(out);
auto fr = freepdfeditor::spike::a::roundtrip(in, out);
switch (fr.outcome) {
case freepdfeditor::spike::a::Outcome::ByteIdentical:
++byte_identical;
break;
case freepdfeditor::spike::a::Outcome::StructurallySame:
++structurally_same;
break;
case freepdfeditor::spike::a::Outcome::Failed:
++failed;
if (failed_samples.size() < 16) {
failed_samples.push_back(in.filename().string());
}
break;
}
fs::remove(out);
}
std::error_code ec;
fs::remove_all(outdir, ec);
double rate = static_cast<double>(byte_identical) /
static_cast<double>(pdfs.size());
// The §14 gate is byte-identity. Structural-same is interesting for the
// report but does not pass the gate; we surface it in notes.
bool gate = rate >= target;
freepdfeditor::spike::SpikeResult r{};
r.spike = "A";
r.name = "QPDF verbatim round-trip";
r.total = pdfs.size();
r.passed = byte_identical;
r.failed = structurally_same;
r.errored = failed;
r.metric_name = "byte_identical_rate";
r.metric_value = rate;
r.target = target;
r.gate_met = gate;
r.failed_samples = failed_samples;
r.notes = "structurally_same files (QPDF rewrote, semantics preserved) count "
"as not-byte-identical for this gate; they are tracked in `failed`";
return freepdfeditor::spike::emit_json_report(r);
}

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# spike/CMakeLists.txt
#
# M0 feasibility spikes (§14). Each spike is its own executable so it can be run
# independently and its results reported separately by CI. The spikes link only
# against the leaf libraries they exercise (QPDF here), not against Qt.
find_package(QPDF CONFIG QUIET)
if(NOT QPDF_FOUND)
message(STATUS
"QPDF not found Spike A (verbatim round-trip) will not be built. "
"Install qpdf (vcpkg, system package, or from source) to enable it.")
return()
endif()
add_executable(spike_a_verbatim_roundtrip
common/SpikeRunner.cpp
common/SpikeRunner.h
A_verbatim_roundtrip/main.cpp
A_verbatim_roundtrip/Roundtrip.cpp
A_verbatim_roundtrip/Roundtrip.h
)
target_link_libraries(spike_a_verbatim_roundtrip PRIVATE QPDF::qpdf)
target_compile_features(spike_a_verbatim_roundtrip PRIVATE cxx_std_20)
freepdfeditor_apply_warnings(spike_a_verbatim_roundtrip)
freepdfeditor_apply_hardening(spike_a_verbatim_roundtrip)
# Spike C (hb-subset growth of an existing subset font) is left as a placeholder
# until HarfBuzz is wired in; it is exercised from a standalone harness in CI.
if(FALSE)
find_package(harfbuzz CONFIG QUIET)
if(harfbuzz_FOUND)
add_executable(spike_c_subset_growth
common/SpikeRunner.cpp
common/SpikeRunner.h
C_subset_growth/main.cpp
)
target_link_libraries(spike_c_subset_growth PRIVATE harfbuzz::harfbuzz harfbuzz::harfbuzz-subset)
endif()
endif()

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#include "SpikeRunner.h"
#include <cstdio>
#include <cstdlib>
#include <string>
namespace freepdfeditor::spike {
namespace {
// Minimal hand-rolled JSON string escaper — avoids pulling a JSON lib into the
// spike harness, which must stay dependency-light so it builds first.
std::string esc(std::string s)
{
std::string out;
out.reserve(s.size() + 8);
for (char c : s) {
switch (c) {
case '"': out += "\\\""; break;
case '\\': out += "\\\\"; break;
case '\n': out += "\\n"; break;
case '\r': out += "\\r"; break;
case '\t': out += "\\t"; break;
default:
if (static_cast<unsigned char>(c) < 0x20) {
char buf[8];
std::snprintf(buf, sizeof(buf), "\\u%04x", c);
out += buf;
} else {
out += c;
}
}
}
return out;
}
} // namespace
int emit_json_report(const SpikeResult& r)
{
std::string samples;
for (std::size_t i = 0; i < r.failed_samples.size(); ++i) {
if (i) samples += ",";
samples += "\"" + esc(r.failed_samples[i]) + "\"";
}
std::printf(
"{\"spike\":\"%s\",\"name\":\"%s\",\"total\":%zu,\"passed\":%zu,"
"\"failed\":%zu,\"errored\":%zu,\"metric\":\"%s\",\"value\":%.6f,"
"\"target\":%.6f,\"gate_met\":%s,\"samples\":[%s],\"notes\":\"%s\"}\n",
r.spike.c_str(), r.name.c_str(),
r.total, r.passed, r.failed, r.errored,
r.metric_name.c_str(), r.metric_value, r.target,
r.gate_met ? "true" : "false",
samples.c_str(), esc(r.notes).c_str());
std::fflush(stdout);
return r.gate_met ? 0 : 1;
}
} // namespace freepdfeditor::spike

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// SpikeRunner — tiny helper that each Spike A/E main() uses to emit a
// machine-readable JSON report and a process exit code matching the spike's
// acceptance gate. Keeping this in one place means CI just parses one format.
#ifndef FREEPDFEDITOR_SPIKE_COMMON_SPIKERUNNER_H
#define FREEPDFEDITOR_SPIKE_COMMON_SPIKERUNNER_H
#include <cstdint>
#include <string>
#include <vector>
namespace freepdfeditor::spike {
struct SpikeResult {
std::string spike; // "A", "B", ...
std::string name; // human-readable
std::size_t total = 0; // files/pages examined
std::size_t passed = 0; // met the gate
std::size_t failed = 0;
std::size_t errored = 0; // crashed / could not process
std::vector<std::string> failed_samples; // up to N sample ids for triage
std::string metric_name; // e.g. "byte_identical_rate", "F1"
double metric_value = 0.0; // aggregate metric
double target = 0.0; // gate threshold
bool gate_met = false;
std::string notes;
};
// Serialise `result` as a single-line JSON document on stdout, then return the
// process exit code (0 if gate_met, 1 otherwise). CI parses this line.
int emit_json_report(const SpikeResult& result);
} // namespace freepdfeditor::spike
#endif // FREEPDFEDITOR_SPIKE_COMMON_SPIKERUNNER_H

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# src/CMakeLists.txt application sources.
#
# At this stage (pre-M1) the only target is the empty-window application shell
# described in §14 step 2: a Qt Widgets main window with the chrome layout from
# §9 so the packaging pipeline and the platform integrations have something to
# sign, install, and notarize from day one. The sandboxed document process and
# the canvas land in M1/M2.
# Locate Qt. The vcpkg manifest does not currently include Qt (it is huge and
# often built system-wide); we use find_package so a system Qt or a vcpkg-built
# Qt both work.
find_package(Qt6 6.7 COMPONENTS Core Gui Widgets Network QUIET)
if(NOT Qt6_FOUND)
message(WARNING
"Qt6 not found the application target 'freepdfeditor' will not be built.\n"
"Install Qt 6.7+ (system or via vcpkg) to build the GUI. The QPDF-based\n"
"spikes and the pixel-diff harness do not require Qt and still build.")
return()
endif()
qt_standard_project_setup()
add_executable(freepdfeditor
app/main.cpp
app/MainWindow.cpp
app/MainWindow.h
)
target_compile_features(freepdfeditor PRIVATE cxx_std_20)
target_link_libraries(freepdfeditor PRIVATE Qt6::Core Qt6::Gui Qt6::Widgets Qt6::Network)
freepdfeditor_apply_warnings(freepdfeditor)
freepdfeditor_apply_hardening(freepdfeditor)
# --- macOS bundle -----------------------------------------------------------
set_target_properties(freepdfeditor PROPERTIES
MACOSX_BUNDLE TRUE
MACOSX_BUNDLE_BUNDLE_NAME "FreePDFEditor"
MACOSX_BUNDLE_BUNDLE_VERSION "${PROJECT_VERSION}"
MACOSX_BUNDLE_SHORT_VERSION_STRING "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}"
MACOSX_BUNDLE_GUI_IDENTIFIER "org.freepdfeditor.FreePDFEditor"
MACOSX_BUNDLE_COPYRIGHT "© 2025 ai-ad4 and contributors, GPL-3.0-or-later"
WIN32_EXECUTABLE TRUE
)
# --- install rules (drive CPack) -------------------------------------------
include(GNUInstallDirs)
install(TARGETS freepdfeditor
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
BUNDLE DESTINATION .)
# Linux .desktop entry, hicolor icons, AppStream metainfo, man page, completions
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
install(FILES "${CMAKE_SOURCE_DIR}/packaging/linux/freepdfeditor.desktop"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications")
install(DIRECTORY "${CMAKE_SOURCE_DIR}/packaging/linux/icons/"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor")
install(FILES "${CMAKE_SOURCE_DIR}/packaging/linux/org.freepdfeditor.FreePDFEditor.metainfo.xml"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/metainfo")
install(FILES "${CMAKE_SOURCE_DIR}/packaging/linux/freepdfeditor.1"
DESTINATION "${CMAKE_INSTALL_MANDIR}/man1")
install(FILES "${CMAKE_SOURCE_DIR}/packaging/linux/freepdfeditor.bash-completion"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/bash-completion/completions"
RENAME "freepdfeditor")
endif()

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
#include "MainWindow.h"
#include <QAction>
#include <QIcon>
#include <QKeySequence>
#include <QLabel>
#include <QMenuBar>
#include <QStatusBar>
#include <QToolBar>
#include <QStackedWidget>
#include <QVBoxLayout>
#include <QWidget>
#include <QStandardPaths>
namespace FreePDFEditor {
MainWindow::MainWindow(QWidget* parent)
: QMainWindow(parent)
{
setMinimumSize(QSize(1024, 720));
setWindowTitle(tr("FreePDFEditor"));
buildCentralChrome();
buildMenus();
buildStatusBar();
}
void MainWindow::buildCentralChrome()
{
// Per §9: tool palette | canvas | inspector. The canvas and panels are
// placeholders for M1; the structure is here so the chrome is testable.
auto* host = new QWidget(this);
auto* layout = new QVBoxLayout(host);
layout->setContentsMargins(0, 0, 0, 0);
auto* placeholder = new QLabel(host);
placeholder->setAlignment(Qt::AlignCenter);
placeholder->setText(
tr("<h3>FreePDFEditor — pre-M0 scaffold</h3>"
"<p>The viewer, sandbox, canvas and editing tools land in M1M6.</p>"
"<p>See <code>docs/plan.md</code> for the roadmap.</p>"));
placeholder->setStyleSheet("color: palette(window-text);");
layout->addWidget(placeholder, 1);
setCentralWidget(host);
}
void MainWindow::buildMenus()
{
// File
auto* fileMenu = menuBar()->addMenu(tr("&File"));
auto* openAct = fileMenu->addAction(
QIcon::fromTheme(QStringLiteral("document-open")), tr("&Open…"));
openAct->setShortcut(QKeySequence::Open);
openAct->setEnabled(false); // M1 viewer
fileMenu->addAction(tr("Open Recent"))->setEnabled(false);
fileMenu->addSeparator();
auto* saveAct = fileMenu->addAction(
QIcon::fromTheme(QStringLiteral("document-save")), tr("&Save"));
saveAct->setShortcut(QKeySequence::Save);
saveAct->setEnabled(false);
auto* saveAsAct = fileMenu->addAction(
QIcon::fromTheme(QStringLiteral("document-save-as")), tr("Save &As…"));
saveAsAct->setShortcut(QKeySequence::SaveAs);
saveAsAct->setEnabled(false);
fileMenu->addSeparator();
auto* printAct = fileMenu->addAction(
QIcon::fromTheme(QStringLiteral("document-print")), tr("&Print…"));
printAct->setShortcut(QKeySequence::Print);
printAct->setEnabled(false);
fileMenu->addSeparator();
auto* quitAct = fileMenu->addAction(
QIcon::fromTheme(QStringLiteral("application-exit")), tr("&Quit"));
quitAct->setShortcut(QKeySequence::Quit);
connect(quitAct, &QAction::triggered, this, &QWidget::close);
// Edit
auto* editMenu = menuBar()->addMenu(tr("&Edit"));
for (auto role : {QKeySequence::Undo, QKeySequence::Redo,
QKeySequence::Cut, QKeySequence::Copy, QKeySequence::Paste}) {
auto* a = editMenu->addAction(QKeySequence(role).toString());
a->setEnabled(false);
}
// View
auto* viewMenu = menuBar()->addMenu(tr("&View"));
viewMenu->addAction(tr("Zoom In"), QKeySequence::ZoomIn)->setEnabled(false);
viewMenu->addAction(tr("Zoom Out"), QKeySequence::ZoomOut)->setEnabled(false);
viewMenu->addAction(tr("Fit to Width"))->setEnabled(false);
// Tools
auto* toolsMenu = menuBar()->addMenu(tr("&Tools"));
for (const char* name : {"Select", "Text Edit", "Annotate", "Redact",
"Form Field", "Shape", "Node Edit"}) {
toolsMenu->addAction(tr(name))->setEnabled(false);
}
// Help
auto* helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(tr("About FreePDFEditor"), this, [this] {
// Minimal about; real About lands with the version+license panel.
});
helpMenu->addAction(tr("Report a Bug…"))->setEnabled(false);
}
void MainWindow::buildStatusBar()
{
m_statusLabel = new QLabel(statusBar());
m_statusLabel->setStyleSheet("padding: 2px 6px;");
statusBar()->addWidget(m_statusLabel, 1);
showStatus(tr("Ready"));
}
void MainWindow::showStatus(const QString& text)
{
if (m_statusLabel) {
m_statusLabel->setText(text);
}
}
void MainWindow::closeEvent(QCloseEvent* event)
{
// M2 will gate this on unsaved changes + journal flush.
QMainWindow::closeEvent(event);
}
} // namespace FreePDFEditor

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// MainWindow — the application shell chrome. Layout follows §9 of the plan:
// tool palette / page canvas / inspector, with menu bar, search and status bar.
// This is the empty-window scaffolding: real canvas, panels, and tools land in
// M1M6.
#ifndef FREEPDFEDITOR_APP_MAINWINDOW_H
#define FREEPDFEDITOR_APP_MAINWINDOW_H
#include <QMainWindow>
class QLabel;
class QStackedWidget;
namespace FreePDFEditor {
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget* parent = nullptr);
// Set the text in the transient status area (used during the scaffold
// phase before the real status bar logic from §9 lands).
void showStatus(const QString& text);
protected:
void closeEvent(QCloseEvent* event) override;
private:
void buildMenus();
void buildCentralChrome();
void buildStatusBar();
QLabel* m_statusLabel = nullptr;
};
} // namespace FreePDFEditor
#endif // FREEPDFEDITOR_APP_MAINWINDOW_H

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// Entry point for the FreePDFEditor UI process. The process model (§2.1) keeps
// all untrusted parsing out of this process; the sandboxed document process is
// spawned on demand once a document is opened. At this scaffolding stage no
// document process exists yet, so this is just the empty window shell.
#include "MainWindow.h"
#include <QApplication>
#include <QCommandLineParser>
int main(int argc, char* argv[])
{
QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
QApplication app(argc, argv);
app.setOrganizationName("FreePDFEditor");
app.setApplicationName("FreePDFEditor");
app.setApplicationDisplayName("FreePDFEditor");
app.setApplicationVersion(QStringLiteral(FREEPDFEDITOR_VERSION_STRING));
app.setWindowIcon(QIcon(QStringLiteral(":/icons/freepdfeditor.svg")));
QCommandLineParser parser;
parser.setApplicationDescription(
QApplication::translate("main", "Cross-platform native desktop PDF editor."));
parser.addHelpOption();
parser.addVersionOption();
parser.addPositionalArgument(
QStringLiteral("file"),
QApplication::translate("main", "Optional PDF file to open at startup."));
parser.process(app);
FreePDFEditor::MainWindow window;
window.show();
const QStringList args = parser.positionalArguments();
if (!args.isEmpty()) {
// No document process yet; the M1 viewer will wire this up.
window.showStatus(QApplication::translate(
"main", "Opening documents is not implemented until M1."));
}
Q_UNUSED(args);
return app.exec();
}

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
# test/CMakeLists.txt
#
# Unit and gate tests. The M0 scaffold ships a single smoke test that proves
# the build produces a runnable artefact and the spike runner emits the
# contract JSON the CI pipeline parses. As the layers land (L1L6), each gets
# its own test executable under here, all registered with CTest.
# We do not pull GoogleTest yet the first tests are plain freestanding mains
# returning non-zero on failure, which keeps the M0 scaffold dependency-free
# and lets CI on all three platforms run ctest without a vcpkg build of gtest.
# A later milestone swaps in GTest once there is real C++ logic to assert on.
add_executable(test_spike_runner_contract test_spike_runner_contract.cpp)
target_compile_features(test_spike_runner_contract PRIVATE cxx_std_20)
freepdfeditor_apply_warnings(test_spike_runner_contract)
freepdfeditor_apply_hardening(test_spike_runner_contract)
add_test(NAME spike_runner_contract COMMAND test_spike_runner_contract)
# Pixel-diff harness scaffolding (§8.2 gate: render vs Ghostscript+PDFium
# reference). The actual comparison runs against a corpus that lives in the
# separate freepdfeditor-corpus repo (§13.2 rule 5); this scaffold is a
# self-contained Python script that CI invokes with paths to the corpus and
# the reference binaries.
install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../ci/pixel-diff/run_pixel_diff.py"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/freepdfeditor/ci")

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// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
//
// Smoke test for the spike-runner JSON contract. The CI pipeline parses the
// single-line JSON that emit_json_report produces; if that format drifts the
// whole gate matrix goes dark. This test pins the format without depending on
// QPDF, so it runs on every platform even before the spike builds.
#include "../spike/common/SpikeRunner.h"
#include <cstdio>
#include <cstring>
#include <string>
namespace {
// Capture stdout during emit_json_report by writing to a captured buffer —
// emit_json_report writes to real stdout, so we redirect via freopen. This is
// crude but avoids pulling a dependency into the scaffold test.
std::string capture(freepdfeditor::spike::SpikeResult r)
{
std::fflush(stdout);
FILE* saved = stdout;
stdout = std::tmpfile();
if (!stdout) { stdout = saved; return {}; }
int rc = freepdfeditor::spike::emit_json_report(r);
std::fflush(stdout);
std::string buf;
std::rewind(stdout);
int c;
while ((c = std::fgetc(stdout)) != EOF) buf.push_back(static_cast<char>(c));
std::fclose(stdout);
stdout = saved;
(void)rc;
return buf;
}
} // namespace
int main()
{
using namespace freepdfeditor::spike;
SpikeResult r{};
r.spike = "A";
r.name = "test";
r.total = 10;
r.passed = 9;
r.failed = 1;
r.errored = 0;
r.metric_name = "byte_identical_rate";
r.metric_value = 0.9;
r.target = 0.99;
r.gate_met = false;
r.failed_samples = {"bad.pdf"};
r.notes = "hello \"world\"\nline2";
std::string out = capture(r);
int failures = 0;
auto assert_contains = [&](const std::string& needle) {
if (out.find(needle) == std::string::npos) {
std::fprintf(stderr, "FAIL: output missing %s\n", needle.c_str());
std::fprintf(stderr, "output was: %s\n", out.c_str());
++failures;
}
};
assert_contains("\"spike\":\"A\"");
assert_contains("\"name\":\"test\"");
assert_contains("\"total\":10");
assert_contains("\"passed\":9");
assert_contains("\"failed\":1");
assert_contains("\"metric\":\"byte_identical_rate\"");
assert_contains("\"value\":0.900000");
assert_contains("\"target\":0.990000");
assert_contains("\"gate_met\":false");
assert_contains("\"samples\":[\"bad.pdf\"]");
assert_contains("\"notes\":\"hello \\\"world\\\"\\nline2\"");
// Single line, terminated by newline.
if (out.empty() || out.back() != '\n') {
std::fprintf(stderr, "FAIL: output not newline-terminated\n");
++failures;
}
if (out.find('\n') != out.size() - 1) {
std::fprintf(stderr, "FAIL: output contains embedded newline\n");
++failures;
}
// Gate-met returns 0; not-met returns 1. Test the contract directly.
r.gate_met = true;
if (freepdfeditor::spike::emit_json_report(r) != 0) {
std::fprintf(stderr, "FAIL: gate_met=true should return 0\n");
++failures;
}
r.gate_met = false;
if (freepdfeditor::spike::emit_json_report(r) != 1) {
std::fprintf(stderr, "FAIL: gate_met=false should return 1\n");
++failures;
}
return failures == 0 ? 0 : 1;
}

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
{
"$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg-configuration.schema.json",
"default-registry": {
"kind": "git",
"repository": "https://github.com/microsoft/vcpkg.git",
"ref": "master",
"baseline": "c4467224f8a384b7d52cb7d5e8abfb3f3f463f17"
},
"overlay-ports": ["${sourceDir}/cmake/vcpkg-ports"]
}

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2025 ai-ad4 and the FreePDFEditor contributors
{
"$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
"name": "freepdfeditor",
"version": "0.1.0",
"description": "A cross-platform native desktop PDF editor with full content editing.",
"homepage": "https://gitea.lm.je/ai-ad4/freepdfeditor",
"license": "GPL-3.0-or-later",
"supports": "(windows & x64) | (windows & arm64) | (osx & x64) | (osx & arm64) | (linux & x64) | (linux & arm64)",
"dependencies": [
{ "name": "qpdf", "version>=": "11.9.0" },
{ "name": "freetype", "version>=": "2.13.2" },
{ "name": "harfbuzz", "version>=": "8.4.0", "features": ["subset"] },
{ "name": "icu", "version>=": "74.2" },
{ "name": "lcms", "version>=": "2.16" },
{ "name": "libjpeg-turbo", "version>=": "3.0.0" },
{ "name": "libpng", "version>=": "1.6.43" },
{ "name": "openjpeg", "version>=": "2.5.2" },
{ "name": "tiff", "version>=": "4.6.0" },
{ "name": "zlib-ng", "version>=": "2.1.5" },
{ "name": "brotli", "version>=": "1.1.0" },
{ "name": "liblzma", "version>=": "5.6.0" },
{ "name": "openssl", "version>=": "3.2.1" },
{ "name": "hunspell", "version>=": "1.7.2" }
],
"features": {
"tesseract": {
"description": "OCR support (Tier 2 feature, off by default for 1.0 builds).",
"dependencies": [
{ "name": "tesseract", "version>=": "5.3.4" },
{ "name": "leptonica", "version>=": "1.84.1" }
]
}
}
}