Folio third-party software The full package license notices are in third-party-notices.txt in this directory. Libraries are loaded only for the relevant tool. User document contents are not transmitted to the library authors or source repositories. Unmodified HEIC decoder and wrapper sources/build instructions: heic-to 1.6.6 (LGPL-3.0): https://github.com/hoppergee/heic-to Exact npm package including src/ and esbuild.mjs: https://registry.npmjs.org/heic-to/-/heic-to-1.6.6.tgz libheif 1.23.6: https://github.com/strukturag/libheif/tree/v1.23.6 libde265 1.0.16: https://github.com/strukturag/libde265/tree/v1.0.16 The bundled CSP decoder identifies these versions in its source header. qpdf WebAssembly wrapper 0.3.0 and build source: https://github.com/neslinesli93/qpdf-wasm qpdf source, Apache-2.0 and bundled component notices: https://github.com/qpdf/qpdf Tesseract.js 7.0.0 and core build source: https://github.com/naptha/tesseract.js https://github.com/naptha/tesseract.js-core Manrope font source and Open Font License: https://github.com/sharanda/manrope You may inspect, replace, and rebuild the LGPL decoder module in accordance with its license; Folio does not restrict reverse engineering needed for that purpose. No third-party authors endorse Folio or its conversion results. Audio engine: @ffmpeg/core 0.12.10, FFmpeg 5.1.4, GPL-2.0-or-later. JavaScript wrapper: @ffmpeg/ffmpeg 0.12.15, MIT. Complete upstream source archives, licenses, build bindings and dependency sources are offered alongside the WASM at /vendor/audio-sources/index.html . The source manifest and checksums are maintained in scripts/audio-sources.json. Build recipe: ffmpeg.wasm commit 71aa99d37c02a7b4c435275ca9ef50e612f6efa1, Dockerfile, Emscripten 3.1.40, FFMPEG_ST single-thread build. Commercial redistribution must comply with the component licenses and source obligations. Folio does not restrict modification or rebuilding of these modules.