PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs. Developed by Mozilla Labs
License: Open Source
MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks. Developed by Artifex Software, Inc.
License: Open Source
Feature | Firefox PDF Viewer (PDF.js) | MuPDF |
---|---|---|
Browser integration | ||
Google Chrome extension | ||
Firefox extension | ||
Add/remove pages | ||
Browser extension | ||
Google Chrome Extensions | ||
Firefox Extensions | ||
Support for Javascript | ||
Lightweight | ||
Opera extension | ||
Low memory usage | ||
Highlighter | ||
Optimal performance | ||
PDF annotation | ||
Fill PDF Forms | ||
Edit PDF | ||
Handwriting recognition | ||
Multiple languages | ||
Export to PDF | ||
Document annotations | ||
Sync between devices | ||
PDF OCR | ||
Clean design | ||
Customer support | ||
Cross-platform | ||
Portable | ||
Vim key mapping | ||
Built-in Image converter | ||
Image resizing | ||
Customizable | ||
Google Drive integration | ||
Night mode/Dark Theme | ||
Ad-free | ||
Built-in viewer | ||
Scan documents | ||
Create PDF files | ||
Print to PDF | ||
Export annotations | ||
Notetaking | ||
Vi keybindings | ||
Superb keyboard navigation | ||
Document reader | ||
File transfer | ||
Freehand Writing |