Open-source licenses

MakePDFFree is built on the work of open-source projects. These are the libraries that run in your browser when you use the site, with their licences. Thank you to everyone who maintains them.

• Next.js

  MIT

  Version 15.5.25

  Website framework and static site generation.

• React

  MIT

  Version 19.3.0

  User interface.

• React DOM

  MIT

  Version 19.3.0

  Rendering the user interface in the browser.

• @cantoo/pdf-lib

  MIT

  Version 2.11.0

  Creating and modifying PDF documents (merge, split, stamp, forms, edits).

• PDF.js (pdfjs-dist)

  Apache-2.0

  Version 6.3.289

  Rendering pages, thumbnails and text extraction.

  Includes the CMap and standard font data distributed with PDF.js, served from this site.

• qpdf-wasm (@neslinesli93/qpdf-wasm)

  ISC

  Version 0.3.0

  WebAssembly build of qpdf for encryption, decryption, repair and optimization.

• qpdf

  Apache-2.0

  Version bundled in qpdf-wasm

  PDF transformation library compiled into the qpdf-wasm module.

• JSZip

  MIT (dual-licensed MIT or GPL-3.0-or-later; used under MIT)

  Version 3.10.2

  Packaging multiple output files into a ZIP download.

• docx

  MIT

  Version 9.7.1

  Generating Word (DOCX) files in PDF to Word.

• Konva

  MIT

  Version 10.5.0

  Canvas drawing for the PDF editor and signatures.

• react-konva

  MIT

  Version 19.2.7

  React bindings for Konva.

• Tesseract.js

  Apache-2.0

  Version 7.0.0

  Optical character recognition (OCR) in the browser.

• tesseract.js-core

  Apache-2.0

  Version 7.0.0

  WebAssembly build of the Tesseract OCR engine.

• @tesseract.js-data/eng

  MIT

  Version 1.0.0

  English language data for OCR.

  The trained model data originates from the Tesseract OCR project (tesseract-ocr/tessdata), distributed under Apache-2.0.

• heic-to

  LGPL-3.0

  Version 1.5.2

  Decoding iPhone HEIC and HEIF photos in HEIC to PDF.

  Used as an unmodified, separately loaded library, as permitted by the LGPL. The complete source code is available at github.com/hoppergee/heic-to, and you may replace it with your own modified build. The licence text is at gnu.org/licenses/lgpl-3.0.