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Open source licenses

FreePDFToolbox is built on open-source software. Here is what we use and under which licenses.

Runtime libraries

LibraryPurposeLicense
pdf-libPDF creation, merging, editing, encryptionMIT
pdf.js (Mozilla)PDF rendering, text and image extractionApache-2.0
Tesseract.jsOCR (scanned documents)Apache-2.0
tesseract.js-coreOCR WebAssembly engineApache-2.0
jsPDFHTML-to-PDF generationMIT
html2canvasHTML rendering for PDF exportMIT
JSZipZIP packaging of multi-file outputsMIT
pakozlib decompression for font extractionMIT
ReactInteractive tool UIMIT
Anton (font)Display typographySIL OFL 1.1
lucide-react(unused, listed for completeness)ISC

License notes

  • MIT permits commercial use, modification and redistribution with attribution.
  • Apache-2.0 permits commercial use, modification and redistribution with attribution and patent protection.
  • SIL OFL 1.1 permits use, modification and redistribution of the font, including for commercial purposes, provided the font is not sold by itself.

Build-time tools

Vite (MIT), TypeScript (Apache-2.0), React plugin (MIT) and related tooling are used only during development; none are required at runtime.

Full license texts

The full text of each license is included in the project's source distribution under docs/licenses/. If you received this site as a built website and need a specific license text, contact us via the Contact page.