Third-party notices

PDFMergely runs entirely in your browser, and it does so on the shoulders of excellent open-source software. This page credits the third-party components whose code, WebAssembly or fonts we bundle (or, for the AI model, download on demand), along with each component’s license. The full license text and copyright notice for each is available at the linked project.

• pdf.jsApache-2.0

  Rendering and reading PDF pages

• pdf-lib (via @cantoo/pdf-lib)MIT

  Creating and editing PDFs

• qpdf (via @neslinesli93/qpdf-wasm)Apache-2.0 (qpdf); ISC (wasm wrapper)

  Repairing damaged PDFs

• Tesseract.jsApache-2.0

  On-device OCR for scanned PDFs

• OpenCV (OpenCV.js)Apache-2.0

  Auto-cropping and cleaning scans

• djvu-rsMIT

  Converting DjVu documents to PDF

• MLC Web-LLM (@mlc-ai/web-llm)Apache-2.0

  Running the on-device AI model

• Qwen2.5-1.5B-Instruct (model weights)Apache-2.0

  The downloadable on-device AI model

• ComlinkApache-2.0

  Talking to Web Workers

• JSZipMIT

  Building ZIP downloads (e.g. Split)

• FigtreeSIL Open Font License 1.1

  The interface typeface

• Noto Sans (CJK SC, Devanagari)SIL Open Font License 1.1

  Rendering non-Latin scripts in generated PDFs

• Next.js and ReactMIT

  The application framework

We are grateful to the maintainers of these projects. If you believe an attribution is missing or incorrect, please let us know.