pdf.io vs Firefox PDF Viewer (PDF.js)

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

pdf.io is a Office & Productivity solution with tags like pdf, editor, annotate, view, edit, sign, comment, form-fill, esignature, collaboration.

It boasts features such as View, edit, annotate, and sign PDFs online, Add text, highlights, shapes, stamps, Fill out and save PDF forms, E-sign documents, Collaborate in real-time, OCR to make PDFs searchable, Password protect PDFs, Redact sensitive info, Compare documents, Convert PDF to Word, Excel, PPT, Create PDFs from files or scanner and pros including Easy to use web interface, Good selection of PDF editing tools, Real-time collaboration, Affordable pricing, No software download required.

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.

pdf.io

pdf.io

pdf.io is a PDF editor that allows you to view, edit, sign, and comment on PDF documents online. Its key features include annotation tools, form filling, e-signatures, and collaboration features.

Categories:
pdf editor annotate view edit sign comment form-fill esignature collaboration

Pdf.io Features

  1. View, edit, annotate, and sign PDFs online
  2. Add text, highlights, shapes, stamps
  3. Fill out and save PDF forms
  4. E-sign documents
  5. Collaborate in real-time
  6. OCR to make PDFs searchable
  7. Password protect PDFs
  8. Redact sensitive info
  9. Compare documents
  10. Convert PDF to Word, Excel, PPT
  11. Create PDFs from files or scanner

Pricing

  • Freemium
  • Subscription-Based

Pros

Easy to use web interface

Good selection of PDF editing tools

Real-time collaboration

Affordable pricing

No software download required

Cons

Limited free plan

Lacks some advanced features like Bates numbering

Mobile apps have fewer features than web


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