# PDF QFT — third-party notices PDF QFT is a modified distribution of [BentoPDF](https://github.com/alam00000/bentopdf). BentoPDF and its contributors retain copyright in their contributions. PDF QFT modifications are Copyright (C) 2026 renphysics and are distributed under **AGPL-3.0-only**. The unchanged [LICENSE](https://github.com/renphysics/pdf.qft.org/blob/qft-site/LICENSE) contains the complete application license. The modifications first recorded on **2026-10-29** add PDF QFT branding, a simplified interface, GitHub Pages deployment, and exclusion of the LibreOffice engine and its dependent tools. Source code and build instructions: [renphysics/pdf.qft.org](https://github.com/renphysics/pdf.qft.org). This is an independent deployment. Upstream names identify the origins of the software and do not imply that those projects operate or endorse PDF QFT. ## Retained license texts The build publishes legal files under `/licenses/`, with an `index.json` manifest recording file origins, package versions, and checksums. Copies from dependency packages are preserved without altering their license text. Where a package ships its license information only in a README, the manifest identifies the excerpt as such. This document is an attribution and source-location guide. Component license texts and copyright notices govern the respective components; the application's AGPL notice does not replace them. ## Vendored viewer and rendering engine The `bentopdf-viewer` and `bentopdf-pdfium` archives were built by upstream from [BentoPDF PDFium Viewer, revision 051abe5b72a9219e6b86e1f890fa7d4aca0e8f49](https://github.com/alam00000/bentopdf-pdfium-viewer/tree/051abe5b72a9219e6b86e1f890fa7d4aca0e8f49). That repository provides the engine/viewer source, build instructions, and references to its PDFium sources. The viewer fork is distributed under AGPL-3.0 and incorporates **EmbedPDF** code, Copyright 2025 **CloudPDF**, under the MIT License. It also includes HarfBuzz under its Old MIT license. The original MIT metadata retained in some packaged files does not replace the fork's AGPL license or its component notices. The following files are retained alongside the vendor archives: - [`vendor/bentopdf-viewer/NOTICE`](vendor/bentopdf-viewer/NOTICE) - [`vendor/bentopdf-viewer/LICENSE.embedpdf-mit`](vendor/bentopdf-viewer/LICENSE.embedpdf-mit) - [`vendor/bentopdf-viewer/LICENSE.harfbuzz`](vendor/bentopdf-viewer/LICENSE.harfbuzz) These are exact copies from the pinned viewer source. Their URLs and checksums are recorded in [`vendor/NOTICE-SOURCES.json`](vendor/NOTICE-SOURCES.json). PDFium and its own dependencies retain their individual licenses in the corresponding source tree. ## Hyper Compress `hyper-compress-wasm` version **1.0.3** is distributed under **AGPL-3.0-only**. Its package includes the full AGPL text. Source and build instructions are in [BentoPDF Hyper Compress, version 1.0.3](https://github.com/alam00000/bentopdf-hyper-compress/tree/148f20f3f4cd11035fdd53dd1c20fb5a5d21cf3b). The original component notice is retained at [`vendor/hyper-compress-wasm/NOTICE.md`](vendor/hyper-compress-wasm/NOTICE.md). It identifies PDFium and its dependencies, Brotli, jpegli/libjxl, Highway, Leptonica, jbig2enc, AFDKO, and other components in the upstream distribution. Their individual licenses remain applicable. ## qpdf and JPEG support The `@neslinesli93/qpdf-wasm` version **0.3.0** wrapper declares the ISC license. Its [pinned build recipe](https://github.com/neslinesli93/qpdf-wasm/blob/e661db2d17e391a9fbe6b350b4ea6dbd8c385891/Dockerfile) compiles **qpdf 12.2.0**, **libjpeg-turbo**, and **zlib**. The compiled components retain their own terms; the wrapper's package metadata does not replace them. Exact upstream copies of qpdf's Apache license and copyright notice, the libjpeg-turbo license and IJG README, and zlib's README containing its license are retained under `vendor/licenses/qpdf/`. Source revisions and checksums are recorded in `vendor/NOTICE-SOURCES.json`. **This software is based in part on the work of the Independent JPEG Group.** ## PDF.js, fonts, and image codecs Retain the license files distributed with the two PDF.js viewers and their assets: - `public/pdfjs-annotation-viewer/LICENSE` — Apache License 2.0. - `public/pdfjs-viewer/cmaps/LICENSE` and `public/pdfjs-annotation-viewer/web/cmaps/LICENSE` — character-map notices. - `LICENSE_FOXIT` and `LICENSE_LIBERATION` in each viewer's `standard_fonts/` directory — font copyright and license notices, including SIL OFL 1.1. - `public/pdfjs-viewer/iccs/LICENSE` — color-profile notices. - The `LICENSE_*` files in `public/pdfjs-viewer/wasm/` — OpenJPEG, QCMS, and PDF.js integration notices. The `@fontsource/*` fonts, Phosphor icons, Lucide icons, and other npm packages retain their own license texts, collected from the installed packages during the build. This fork does not rename or modify third-party font programs. Supplemental notices for packages whose published archives omit a standalone license are retained under `vendor/licenses/`, with source provenance and package versions in `vendor/NOTICE-SOURCES.json`. ## Additional runtime engines Some tools obtain their WebAssembly modules from external CDNs. These engines retain their own licenses and source-distribution requirements: | Component | License | Project/source | | ----------- | -------- | ----------------------------------------------------------------- | | PyMuPDF | AGPL-3.0 | [PyMuPDF](https://github.com/pymupdf/PyMuPDF) | | Ghostscript | AGPL-3.0 | [GhostPDL](https://github.com/ArtifexSoftware/ghostpdl) | | CoherentPDF | AGPL-3.0 | [CoherentPDF](https://github.com/coherentgraphics/coherentpdf.js) | The configured module URLs and dependency lockfile identify the versions used by a particular build. Changing the host of a module does not change its license. Tesseract.js, qpdf, pdf-lib, PDFKit, image codecs, and the remaining dependencies also retain their respective licenses; see the generated notice manifest and the package source locations it records. The LibreOffice runtime and its dependent tools are excluded from PDF QFT's GitHub Pages deployment. Existing upstream source and acknowledgments remain available in this repository. ## Redistribution Keep the relevant copyright, license, and attribution notices when copying or modifying this application. A deployment of a modified version must provide access to its corresponding source under the AGPL. Include the build scripts, configuration, and dependency information needed for that version. This software is provided without warranty, subject to the terms of its applicable licenses. The license governs the software; processing an ordinary user document does not by itself require publishing that document.