SumatraPDF vs pdf.io

Struggling to choose between SumatraPDF and pdf.io? Both products offer unique advantages, making it a tough decision.

SumatraPDF is a Office & Productivity solution with tags like pdf, ebook, reader, lightweight, opensource.

It boasts features such as Lightweight and fast PDF reader, Supports many document formats like PDF, ePub, MOBI, XPS, DjVu, CHM, CBZ, CBR, Customizable with themes, keyboard shortcuts, Tabbed document interface, Supports annotations and highlighting, Continuous scrolling, Supports reflowable text, Supports digital signatures, Supports comics book formats, Supports eBooks, Supports syncing open documents across devices and pros including Lightweight and fast, Supports many document formats, Free and open source, Customizable, Good support for comics and eBooks.

On the other hand, pdf.io is a Office & Productivity product tagged with pdf, editor, annotate, view, edit, sign, comment, form-fill, esignature, collaboration.

Its standout features include 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 it shines with pros like Easy to use web interface, Good selection of PDF editing tools, Real-time collaboration, Affordable pricing, No software download required.

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.

SumatraPDF

SumatraPDF

SumatraPDF is a free and open-source PDF, eBook, XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. It is lightweight, customizable, and supports many advanced PDF features.

Categories:
pdf ebook reader lightweight opensource

SumatraPDF Features

  1. Lightweight and fast PDF reader
  2. Supports many document formats like PDF, ePub, MOBI, XPS, DjVu, CHM, CBZ, CBR
  3. Customizable with themes, keyboard shortcuts
  4. Tabbed document interface
  5. Supports annotations and highlighting
  6. Continuous scrolling
  7. Supports reflowable text
  8. Supports digital signatures
  9. Supports comics book formats
  10. Supports eBooks
  11. Supports syncing open documents across devices

Pricing

  • Free
  • Open Source

Pros

Lightweight and fast

Supports many document formats

Free and open source

Customizable

Good support for comics and eBooks

Cons

Limited annotation features compared to advanced PDF editors

Lacks OCR capabilities

No cloud storage integration

No mobile apps


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