Firefox PDF Viewer (PDF.js) vs Sumatra PDF : Which is Better?

Firefox PDF Viewer (PDF.js) icon

Firefox PDF Viewer (PDF.js)

PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs. Developed by Mozilla Labs

License: Open Source

Apps available for Mac OS X Windows Linux Google Chrome Opera

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Sumatra PDF icon

Sumatra PDF

Sumatra PDF is PDF reader and writer for Windows. Developed by Krzysztof Kowalczyk

License: Open Source

Apps available for Windows PortableApps.com

Firefox PDF Viewer (PDF.js) VS Sumatra PDF Feature comparision

Feature Firefox PDF Viewer (PDF.js) Sumatra PDF
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
Export to office formats
AzW Reader
Data portability
Global bookmarks
Multi Format Reader
OXPS File Reader
PRC File Reader
Quick search
Signing PDF Documents
Tabbed interface
XOD File Reader
Scan documents
File transfer
Freehand Writing
iPhone/iPod sync
Built-in viewer
*community curated information: This table may not have the most accurate information. Please suggest changes

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