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iLovePDF vs SumatraPDF

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

iLovePDF icon
iLovePDF
SumatraPDF icon
SumatraPDF

iLovePDF vs SumatraPDF: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature iLovePDF SumatraPDF
Sugggest Score
Category Office & Productivity Office & Productivity
Pricing Freemium Open Source

Product Overview

iLovePDF
iLovePDF

Description: iLovePDF is a free online PDF editor that allows you to manipulate PDF files easily through your web browser. It provides tools to merge, split, compress, convert, rotate, unlock and repair PDFs without needing to install any software.

Type: software

Pricing: Freemium

SumatraPDF
SumatraPDF

Description: 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.

Type: software

Pricing: Open Source

Key Features Comparison

iLovePDF
iLovePDF Features
  • Merge PDF files
  • Split PDF files
  • Compress PDF files
  • Convert PDF files to other formats
  • Rotate PDF pages
  • Unlock password protected PDF files
  • Repair corrupted PDF files
SumatraPDF
SumatraPDF Features
  • 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

Pros & Cons Analysis

iLovePDF
iLovePDF
Pros
  • Free to use
  • No software installation required
  • Intuitive web interface
  • Supports many common PDF operations
Cons
  • Limited features compared to paid PDF editors
  • Must upload PDF files to third-party server
  • No desktop or mobile apps available
  • Free version has file size limits
SumatraPDF
SumatraPDF
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

Pricing Comparison

iLovePDF
iLovePDF
  • Freemium
SumatraPDF
SumatraPDF
  • Open Source

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