NOTES.txt

PDF Spec Errata
===============

- https://pdf-issues.pdfa.org/32000-2-2020/index.html
- https://github.com/pdf-association/pdf-issues/issues


Related Projects
================

- https://pkg.go.dev/rsc.io/pdf
- https://github.com/pdfcpu/pdfcpu
- https://www.adobe.com/devnet/font.html
- https://github.com/speedata/boxesandglue
- https://github.com/benoitkugler/pdf


List of PDF viewers/renderers
=============================

- Adobe Acrobat Reader

- MacOS Preview

- Google Chrome
  based on "Foxit PDF SDK"
  open source
  https://github.com/PDFium/PDFium

- Firefox
  https://github.com/mozilla/gecko-dev/tree/master/gfx/skia/skia/src/pdf
  I'm not sure where this comes from.  The copyright notices
  refer to Google and Android.

- https://github.com/mozilla/pdf.js/

- xpdf / poppler / evince
  based on XpdfWidget/Qt™, by Glyph & Cog
  https://github.com/oudream/xpdf
  https://gitlab.freedesktop.org/poppler/poppler

- mupdf / ghostscript
  https://github.com/ArtifexSoftware/mupdf
  https://github.com/ArtifexSoftware/ghostpdl