FizzyTools Rotate PDF uses these open-source components. Thank you to their authors. - Svelte (MIT) https://github.com/sveltejs/svelte - @cantoo/pdf-lib (MIT) https://github.com/cantoo-scribe/pdf-lib - pdf.js / pdfjs-dist (Apache-2.0) https://github.com/mozilla/pdf.js Its data files are served unmodified from /rotate-pdf/vendor/pdfjs/ with their licence files alongside: Adobe CMaps (BSD-style), standard font data (Foxit: BSD-style; Liberation: Liberation font licence), image decoders built from PDFium JBIG2 (BSD-style) and OpenJPEG (BSD-2-Clause), and qcms (MIT). - Tesseract.js + core (Apache-2.0) https://github.com/naptha/tesseract.js - Tesseract language data (Apache-2.0) https://github.com/tesseract-ocr/tessdata_best Used only by "Check scanned pages"; served from /rotate-pdf/vendor/tesseract/ and /rotate-pdf/vendor/tessdata/. - Bricolage Grotesque, DM Sans (SIL OFL 1.1) /rotate-pdf/fonts/