Open-source licenses

ShyPDF’s own code is open source under AGPL-3.0: github.com/ghw307261305/shypdf.

ShyPDF is built on the work of these open-source projects. Each remains under its own license.

• pdf-lib — Creating and editing PDFs.
  © Andrew Dillon. MIT. License text
• PDF.js — Rendering page previews and images.
  © Mozilla. Apache-2.0. License text
• qpdf — Encryption, decryption and repair, compiled to WebAssembly (the @jspawn/qpdf-wasm build).
  © Jay Berkenbilt. Apache-2.0. License text
• Tesseract.js — Text recognition (OCR) in the browser.
  © Tesseract.js contributors. Apache-2.0. License text
• Tesseract OCR — The OCR engine, compiled to WebAssembly (tesseract.js-core), with language data from tessdata.
  © Google and the Tesseract authors. Apache-2.0. License text
• HarfBuzz — Font subsetting for Word to PDF, compiled to WebAssembly (harfbuzzjs).
  © The HarfBuzz authors. Old MIT. License text
• fontkit — Reading font metrics.
  © Devon Govett and contributors. MIT. License text
• JSZip — Zip downloads.
  © Stuart Knightley and contributors. MIT (dual-licensed MIT / GPL-3.0; used under MIT). License text
• Carlito — Embedded in converted PDFs in place of Calibri.
  © The Carlito Project Authors. SIL Open Font License 1.1. License text
• Arimo — Embedded in converted PDFs in place of Arial.
  © The Arimo Project Authors. SIL Open Font License 1.1. License text
• Tinos — Embedded in converted PDFs in place of Times New Roman.
  © The Tinos Project Authors. SIL Open Font License 1.1. License text
• Cousine — Embedded in converted PDFs in place of Courier New.
  © The Cousine Project Authors. SIL Open Font License 1.1. License text
• Noto Sans JP / SC / KR — Embedded in converted PDFs for Japanese, Chinese and Korean text.
  © Adobe and Google. SIL Open Font License 1.1. License text
• Inter — Typeface.
  © The Inter Project Authors. SIL Open Font License 1.1. License text
• Astro — Site generator.
  © Astro contributors. MIT. License text

The qpdf WebAssembly build includes zlib and libjpeg. This software is based in part on the work of the Independent JPEG Group.