Open-source licenses

Last updated: July 21, 2026

SizePDF uses third-party open-source software. Their copyrights and licenses remain with their respective authors. Key dependencies include:

• pdf.js (pdfjs-dist) — Apache License 2.0
  PDF rendering in the browser.
  https://github.com/mozilla/pdf.js
• pdf-lib — MIT License
  PDF creation and embedding of page images.
  https://github.com/Hopding/pdf-lib
• Next.js — MIT License
  Web application framework.
  https://github.com/vercel/next.js
• React — MIT License
  User interface library.
  https://github.com/facebook/react

Full license texts are available in the upstream repositories and in this project’s dependency tree after install. SizePDF does not use Ghostscript or AGPL PDF engines by default.

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