Open-Source Licenses

Software we build on

StayPutPDF runs in your browser using the open-source libraries and fonts below. We are grateful to their authors. Each is used under its own license; the full license text is available at the link next to it. Copyright notices included in the distributed files are kept as they are.

• pdf-lib 1.17.1 — Merging, splitting, compressing, signing, editing.
  MIT License. Copyright (c) 2019 Andrew Dillon. License text
• @pdf-lib/fontkit 1.1.1 — Embedding fonts in PDFs.
  MIT License. Copyright (c) Devon Govett and contributors. License text
• PDF.js 3.11.174 — Showing pages and finding text.
  Apache License 2.0. Copyright Mozilla Foundation and contributors. License text
• Tesseract.js and tesseract.js-core 5.1.1 — Text recognition (OCR).
  Apache License 2.0. Copyright Jerome Wu, Guillermo Webster and contributors. License text
• Tesseract OCR engine and language data (tessdata) 4.0.0 — OCR engine and trained language models.
  Apache License 2.0. Copyright Google LLC and the Tesseract OCR contributors. License text
• mammoth.js 1.12.3 — Reading Word (.docx) files.
  BSD 2-Clause License. Copyright (c) 2013 Michael Williamson. License text
• pdfmake 0.2.23 — Building PDFs from Word and Excel content.
  MIT License. Copyright (c) 2014 bpampuch and contributors. License text
• html-to-pdfmake 2.5.34 — Converting document structure for pdfmake.
  MIT License. Copyright (c) Aymeric Dominique. License text
• JSZip 3.10.1 — Creating .zip downloads.
  MIT License (dual-licensed MIT or GPLv3; used under MIT). Copyright (c) 2009-2016 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso. License text
• SheetJS Community Edition (xlsx) 0.20.3 — Reading Excel files.
  Apache License 2.0. Copyright (C) 2012-present SheetJS LLC. License text
• Roboto (fonts bundled with pdfmake) — Default font in converted documents.
  Apache License 2.0. Copyright Google LLC. License text
• Noto Sans, Noto Sans Arabic, Noto Sans JP and SC — Fonts for non-Latin text in converted documents.
  SIL Open Font License 1.1. Copyright Google LLC and the Noto Project Authors. License text
• Inter and Caveat (via Google Fonts) — Fonts of the website and typed signatures.
  SIL Open Font License 1.1. Copyright The Inter Project Authors; Copyright The Caveat Project Authors. License text
• Tailwind CSS — Styling of some pages.
  MIT License. Copyright (c) Tailwind Labs, Inc. License text

Third-party services

Payments (Lemon Squeezy), analytics (PostHog) and hosting (Vercel) are services provided by other companies under their own terms; see our Privacy Policy. The StayPutPDF name, logo, website design and our own code are not open source and remain our property — see our Terms of Use.

Questions about licensing: support@stayputpdf.com