Open-source licenses

Libraries

The tools run on the libraries below. They are served from this site itself (under /vendor/) in the exact versions listed, together with their license texts. The licenses are permissive: they allow use and redistribution as long as the license and copyright notices are included, which is what the links below provide.

• PDF.js (pdfjs-dist) – version 4.10.38 – Apache License 2.0 – copyright: © Mozilla Foundation and contributors – license text.
• Adobe CMaps (in PDF.js) – version 4.10.38 – BSD 3-Clause – copyright: © 1990–2009 Adobe Systems Incorporated – license text.
• Foxit standard fonts (in PDF.js) – version 4.10.38 – BSD 3-Clause – copyright: © 2014 PDFium Authors – license text.
• Liberation fonts (in PDF.js) – version 4.10.38 – SIL Open Font License 1.1 – copyright: © 2010 Google Corporation, © 2012 Red Hat, Inc. – license text.
• OpenJPEG (in PDF.js, WebAssembly) – BSD 2-Clause – copyright: © 2002–2014 Université catholique de Louvain (UCL) and contributors – license text.
• pdf-lib – version 1.17.1 – MIT – copyright: © 2019 Andrew Dillon – license text.
• @pdf-lib/fontkit – version 1.1.1 – MIT – copyright: © Devon Govett (fontkit), fork by Andrew Dillon – license text. The npm package ships no license file; the license is the one declared in its package.json (MIT).
• JSZip – version 3.10.2 – MIT – copyright: © 2009–2016 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso – license text. Dual-licensed (MIT or GPL version 3); used here under the MIT license.
• docx – version 9.8.1 – MIT – copyright: © 2016 Dolan – license text.
• PptxGenJS – version 4.0.1 – MIT – copyright: © 2015–2022 Brent Ely – license text.
• tesseract.js – version 7.0.0 – Apache License 2.0 – copyright: © 2016 Kevin Kwok and contributors – license text.
• tesseract.js-core – version 7.0.0 – Apache License 2.0 – Tesseract OCR compiled to WebAssembly, with Leptonica, libpng, libjpeg, libtiff and zlib (permissive licenses, listed in the notices file); only loaded when you use the OCR tool – license text.
• Tesseract tessdata_best (4.0.0_best_int) – Apache License 2.0 – copyright: © Google LLC and Tesseract OCR contributors – language data (tessdata_best) for English, Dutch, French, German, Spanish, Portuguese, Italian and Polish; a language is only downloaded when you choose it for OCR – license text.

Fonts

Used for watermarks with non-Latin letters and symbols; each font is loaded only when needed. SIL Open Font License 1.1.

• Noto Sans (version 0.4.2) – copyright: © 2022 The Noto Project Authors – license text
• Noto Sans Arabic (version 0.4.3) – copyright: © 2022 The Noto Project Authors – license text
• Noto Sans Hebrew (version 0.4.1) – copyright: © 2022 The Noto Project Authors – license text
• Noto Sans JP (version 0.4.3) – copyright: © 2014–2021 Adobe – license text
• Noto Sans KR (version 0.4.3) – copyright: © 2014–2021 Adobe – license text
• Noto Sans SC (version 0.4.3) – copyright: © 2014–2021 Adobe – license text
• Noto Sans Math (version 0.4.2) – copyright: © 2022 The Noto Project Authors – license text
• Noto Sans Symbols 2 (version 0.4.1) – copyright: © 2022 The Noto Project Authors – license text
• Caveat (version 5.3.0) – copyright: © 2014 The Caveat Project Authors – license text
• Dancing Script (version 5.3.0) – copyright: © 2016 The Dancing Script Project Authors – license text
• Great Vibes (version 5.3.0) – copyright: © 2010 The Great Vibes Pro Project Authors – license text

The site itself uses Source Serif 4 (version 4.004, © 2014–2021 Adobe) and IBM Plex Sans (version 3.201, © 2017 IBM Corp.), both under the SIL Open Font License 1.1. license text.

Code bundled inside these libraries

The library files are pre-built bundles that also contain smaller packages they depend on (such as pako, nanoid, xml-js and image-size), all under permissive licenses (MIT, ISC, BSD-3-Clause, 0BSD, Zlib, Blue Oak). Their license texts are collected in one file: third-party notices.

Questions about these licenses? Email support@pdfcommunity.org.