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Firefox PDF Viewer (PDF.js) vs Xpdf

Professional comparison and analysis to help you choose the right software solution for your needs.

Firefox PDF Viewer (PDF.js) icon
Firefox PDF Viewer (PDF.js)
Xpdf icon
Xpdf

Firefox PDF Viewer (PDF.js) vs Xpdf: The Verdict

⚡ Summary:

Firefox PDF Viewer (PDF.js): Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view PDFs directly in the browser without needing an external plugin.

Xpdf: Xpdf is an open source PDF reader for Linux, Unix, Mac, and Windows systems. It supports viewing, printing, and searching PDF files. Xpdf is lightweight, fast, and has a simple interface.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Firefox PDF Viewer (PDF.js) Xpdf
Sugggest Score — —
Category Web Browsers Office & Productivity
Pricing Open Source Open Source

Product Overview

Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js)

Description: Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view PDFs directly in the browser without needing an external plugin.

Type: software

Pricing: Open Source

Xpdf
Xpdf

Description: Xpdf is an open source PDF reader for Linux, Unix, Mac, and Windows systems. It supports viewing, printing, and searching PDF files. Xpdf is lightweight, fast, and has a simple interface.

Type: software

Pricing: Open Source

Key Features Comparison

Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js) Features
  • In-browser PDF viewer
  • No browser plugins required
  • Fast page rendering
  • Text search
  • Page zoom
  • Printing
  • Document outline
  • Annotations
Xpdf
Xpdf Features
  • Viewing PDF files
  • Printing PDF files
  • Searching text in PDF files
  • Copy text and images from PDFs
  • Zoom in/out of pages
  • View page thumbnails
  • View document outline
  • View annotations
  • Save PDFs

Pros & Cons Analysis

Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js)

Pros

  • Lightweight
  • Open source
  • Secure
  • Fast load times
  • Works offline
  • Consistent experience across devices

Cons

  • Limited annotation features
  • Lacks some advanced PDF features like form filling
  • Printing can be unreliable
  • Not as full-featured as standalone PDF apps
Xpdf
Xpdf

Pros

  • Lightweight and fast
  • Simple and easy to use interface
  • Good performance
  • Supports many platforms
  • Open source and free

Cons

  • Limited features compared to proprietary PDF readers
  • Minimal UI lacking customization options
  • Lacks advanced PDF editing capabilities
  • No cloud storage integration

Pricing Comparison

Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js)
  • Open Source
Xpdf
Xpdf
  • Open Source

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Learn More About Each Product

Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js)
Reviews, pricing & alternatives →
Xpdf
Xpdf
Reviews, pricing & alternatives →

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