Altarsoft PDF Reader vs Firefox PDF Viewer (PDF.js)

Struggling to choose between Altarsoft PDF Reader and Firefox PDF Viewer (PDF.js)? Both products offer unique advantages, making it a tough decision.

Altarsoft PDF Reader is a Office & Productivity solution with tags like pdf, reader, viewer, free, opensource.

It boasts features such as View PDF files, Print PDF files, Annotate PDF files, Copy text from PDF files, Search text in PDF files and pros including Free and open source, Lightweight and fast, Easy to use, Supports basic PDF features.

On the other hand, Firefox PDF Viewer (PDF.js) is a Web Browsers product tagged with open-source, pdf, viewer, firefox, browser-plugin.

Its standout features include In-browser PDF viewer, No browser plugins required, Fast page rendering, Text search, Page zoom, Printing, Document outline, Annotations, and it shines with pros like Lightweight, Open source, Secure, Fast load times, Works offline, Consistent experience across devices.

To help you make an informed decision, we've compiled a comprehensive comparison of these two products, delving into their features, pros, cons, pricing, and more. Get ready to explore the nuances that set them apart and determine which one is the perfect fit for your requirements.

Altarsoft PDF Reader

Altarsoft PDF Reader

Altarsoft PDF Reader is a free, open-source PDF viewer for Windows. It provides basic PDF viewing, printing and annotation features in a lightweight program.

Categories:
pdf reader viewer free opensource

Altarsoft PDF Reader Features

  1. View PDF files
  2. Print PDF files
  3. Annotate PDF files
  4. Copy text from PDF files
  5. Search text in PDF files

Pricing

  • Free
  • Open Source

Pros

Free and open source

Lightweight and fast

Easy to use

Supports basic PDF features

Cons

Limited features compared to paid options

Lacks advanced editing capabilities

Few customization options

Basic UI


Firefox PDF Viewer (PDF.js)

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.

Categories:
open-source pdf viewer firefox browser-plugin

Firefox PDF Viewer (PDF.js) Features

  1. In-browser PDF viewer
  2. No browser plugins required
  3. Fast page rendering
  4. Text search
  5. Page zoom
  6. Printing
  7. Document outline
  8. Annotations

Pricing

  • Open Source
  • Free

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