# Third-party notices

Filee is MIT-licensed. It uses and redistributes the following third-party software.
Each component remains under its own license.

## Libraries (NuGet)

| Component | License | Project |
|---|---|---|
| Avalonia UI | MIT | https://github.com/AvaloniaUI/Avalonia |
| CommunityToolkit.Mvvm | MIT | https://github.com/CommunityToolkit/dotnet |
| SharpHook (libuiohook) | MIT (libuiohook: GPL-3.0 with linking exception / LGPL-3.0) | https://github.com/TolikPylypchuk/SharpHook |
| Magick.NET / ImageMagick | Apache-2.0 / ImageMagick License | https://github.com/dlemstra/Magick.NET |
| ImageMagick delegate libraries (libheif, libde265, libwebp, libjpeg-turbo, libpng, libtiff, zlib, …) | Various (LGPL-2.1+, BSD, zlib) | bundled inside Magick.NET |
| PDFsharp | MIT | https://github.com/empira/PDFsharp |
| PDFtoImage | MIT | https://github.com/sungaila/PDFtoImage |
| PDFium (bblanchon.PDFium) | BSD-3-Clause / Apache-2.0 | https://pdfium.googlesource.com/pdfium |
| SkiaSharp | MIT | https://github.com/mono/SkiaSharp |
| Svg.Skia (incl. Svg, ShimSkiaSharp, ExCSS; text shaping in `Filee.Engines/Vector/OutlinedTextPlayback.cs` adapted from it) | MIT | https://github.com/wieslawsoltes/Svg.Skia |
| HarfBuzzSharp | MIT | https://github.com/mono/SkiaSharp |
| SharpCompress (zstd decompression for engine downloads; RAR, 7z and TAR comics) | MIT | https://github.com/adamhathcock/sharpcompress |
| Unhwp | MIT | https://github.com/iyulab/unhwp |
| Markdig | BSD-2-Clause | https://github.com/xoofx/markdig |
| ExcelNumberFormat | MIT | https://github.com/andersnm/ExcelNumberFormat |
| ExcelDataReader | MIT | https://github.com/ExcelDataReader/ExcelDataReader |
| PdfPig (PDF text, layout and pictures) | Apache-2.0 | https://github.com/UglyToad/PdfPig |
| MimeKitLite (e-mail / MIME parsing) | MIT | https://github.com/jstedfast/MimeKit |
| MsgReader (Outlook .msg reading) | MIT, Copyright (c) Kees van Spelde | https://github.com/Sicos1977/MSGReader |
| OpenMcdf (OLE compound files, used by MsgReader) | MPL-2.0 (source: the project page) | https://github.com/openmcdf/openmcdf |
| RtfPipe (RTF → HTML, used by MsgReader) | MIT, Copyright (c) 2018 Eric Domke | https://github.com/erdomke/RtfPipe |
| UTF.Unknown (charset detection, used by MsgReader) | MPL-1.1 (source: the project page) | https://github.com/CharsetDetector/UTF-unknown |
| Microsoft.Maui.Graphics, Microsoft.IO.RecyclableMemoryStream (used by MsgReader) | MIT | https://github.com/dotnet/maui, https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream |
| YamlDotNet (YAML reading and writing) | MIT, Copyright (c) Antoine Aubry and contributors | https://github.com/aaubry/YamlDotNet |
| Tomlyn (TOML reading) | BSD-2-Clause, Copyright (c) Alexandre Mutel | https://github.com/xoofx/Tomlyn |
| ACadSharp (DWG/DXF reading and writing; includes CSMath and CSUtilities) | MIT, Copyright (c) Albert Domenech | https://github.com/DomCR/ACadSharp |
| SharpGLTF.Core (glTF / GLB reading and writing) | MIT, Copyright (c) Vicente Penades | https://github.com/vpenades/SharpGLTF |
| AngleSharp | MIT | https://github.com/AngleSharp/AngleSharp |
| pypandoc-hwpx (Pandoc AST mapping and package layout in `Filee.Engines/Hwp/Hwpx`, incl. the `blank.hwpx` reference document) | MIT, Copyright (c) 2024 pypandoc-hwpx Contributors | https://github.com/msjang/pypandoc-hwpx |
| Microsoft.Extensions.* | MIT | https://github.com/dotnet/runtime |
| cu2qu (fontTools): the cubic-to-quadratic approach followed by `Filee.Engines/Fonts/Cff/CubicToQuadratic.cs` | Apache-2.0, Copyright 2016 Google Inc. | https://github.com/fonttools/fonttools |

libuiohook (the native input hook inside SharpHook) is the fork https://github.com/TolikPylypchuk/libuiohook, licensed
under the GNU LGPL-3.0 (`COPYING.LESSER.md` in its repository). Filee loads SharpHook's unmodified build of it
dynamically; you may replace those libraries with your own build of libuiohook.

Used by the tests only (not redistributed): DocumentFormat.OpenXml (Open XML SDK, MIT, https://github.com/dotnet/Open-XML-SDK) validates the DOCX files Filee writes.

## Engines

Bundled with the installer:

| Component | License | Project |
|---|---|---|
| rhwp | MIT | https://github.com/edwardkim/rhwp |
| 7-Zip (console: `7z.exe`, `7z.dll`) | GNU LGPL-2.1-or-later; parts of `7z.dll`: LGPL with the unRAR license restriction, BSD-3-Clause, BSD-2-Clause | https://www.7-zip.org |

The Linux packages contain an rhwp built by Filee's CI from the unmodified source of the same release (tag `v0.8.7`,
commit `1a76570e833917d15817415a53c09ad61ab3203f`, `cargo build --release --locked --bin rhwp` on Ubuntu 22.04), so it
runs on older Linux systems than rhwp's own Linux build. It is under the same MIT license; its `LICENSE` is next to it
(`engines/rhwp`). Windows and macOS use rhwp's release builds.

7-Zip is Copyright (C) 1999-2026 Igor Pavlov; its `License.txt` is installed next to it (`engines/7zip`). The RAR
decompression code in `7z.dll` is under the unRAR license restriction: it may be used to unpack RAR archives, but not
to develop a RAR (WinRAR) compatible archiver or to re-create the RAR compression algorithm. Filee only reads RAR
files. Source code: https://github.com/ip7z/7zip.

Downloaded from their official release pages when the user chooses to install them
(pinned in `src/Filee.Engines/Infrastructure/engines.json`):

| Component | License | Project |
|---|---|---|
| LibreOffice | MPL-2.0 | https://www.libreoffice.org |
| H2Orestart (HWP/HWPX import for LibreOffice) | GPL-3.0 | https://github.com/ebandal/H2Orestart |
| Eclipse Temurin JRE (for H2Orestart) | GPL-2.0 with Classpath Exception | https://adoptium.net |
| Pandoc | GPL-2.0-or-later | https://github.com/jgm/pandoc |
| Ghostscript (conda-forge build) | AGPL-3.0 | https://www.ghostscript.com, https://github.com/conda-forge/ghostscript-feedstock |
| Microsoft Visual C++ Redistributable (for Ghostscript, conda-forge `vc14_runtime`) | Microsoft Visual C++ Redistributable license | https://github.com/conda-forge/vc-feedstock |
| FFmpeg 9.0.2 (gyan.dev "full_build-shared" Windows build; ffmpeg.exe, ffprobe.exe and their libraries, incl. x264, x265, libvpx, LAME, Opus, Vorbis, Theora, OpenCORE AMR) | GPL-3.0-or-later (the build is configured with `--enable-gpl --enable-version3`); FFmpeg itself LGPL-2.1-or-later | https://ffmpeg.org, build: https://www.gyan.dev/ffmpeg/builds/ (source: https://github.com/GyanD/codexffmpeg) |
| calibre (ebook-convert) | GPL-3.0 | https://calibre-ebook.com |

These programs run as separate processes. Their source code is available from the linked projects.

## Windows 11 Explorer menu (FileeExplorerMenu.dll)

The DLL is Filee's own C code, compiled with the Zig toolchain (a build tool, not shipped) against the mingw-w64
Windows headers, without a C runtime. Pieces of these projects that can end up in the binary:

| Component | License | Project |
|---|---|---|
| Zig compiler_rt (compiler support routines) | MIT | https://github.com/ziglang/zig |
| mingw-w64 Windows headers and import library definitions | Public domain / ZPL-2.1 | https://www.mingw-w64.org |

## Installer

`Filee-<version>-win-Setup.exe` is built with Inno Setup (a build tool, not part of the app); the setup and uninstall
programs inside it are Inno Setup's.

| Component | License | Project |
|---|---|---|
| Inno Setup (Copyright (C) 1997-2026 Jordan Russell, portions Copyright (C) 2000-2026 Martijn Laan) | Inno Setup License | https://jrsoftware.org/isinfo.php |

## Fonts and icons

| Component | License | Project |
|---|---|---|
| Noto Sans, Noto Sans KR, Noto Sans SC | SIL Open Font License 1.1 | https://github.com/notofonts |
| Test fonts in `tests/Filee.Engines.Tests/Fonts` (subsets of Noto Sans and Noto Sans KR; not shipped) | SIL Open Font License 1.1 | see `OFL.txt` in that folder |
| Material Design Icons (Pictogrammers) | Apache-2.0 | https://pictogrammers.com |
| Simple Icons 16.35.0 (GitHub Sponsors, Patreon, Ko-fi and PayPal logos in the Sponsor window) | CC0-1.0 | https://simpleicons.org |

The GitHub Sponsors, Patreon, Ko-fi and PayPal names and logos are trademarks of their owners and are used only to link
to each service.