Okular vs IrfanView

Okular8.9Visit IrfanView8.4Visit

Higher score Okular #3 in File Viewer Software 8.9/10 Free plan Free plan✓ 0 of 4 features Visit KDE

vs

IrfanView #6 in File Viewer Software 8.4/10 Free plan Free plan✓ 0 of 4 features Visit IrfanView

• Okular fits best

  Free cross-platform PDF and document viewing

• IrfanView fits best

  Low-cost Windows batch image processing

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Side by side

Feature	Okular 8.9/10 Visit ↗	IrfanView 8.4/10 Visit ↗
At a glance
Editor score	8.9	8.4
Ranking	#3 in File Viewer Software	#6 in File Viewer Software
Best for	Free cross-platform PDF and document viewing	Low-cost Windows batch image processing
Pricing model	Free	Free plan + paid
Starting price	Free plan	$18/device one-time
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows, macOS, Linux	Windows
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features Okular 0/4 · IrfanView 0/4
Archive preview	Not checked yet	Not checked yet
Office file preview	Not checked yet	Not checked yet
Code file preview	Not checked yet	Not checked yet
In-file search	Not checked yet	Not checked yet
Specs
Listed formats	Not checked yet	Not checked yet
Primary access	Not checked yet	Not checked yet
Maximum file size	Not checked yet	Not checked yet
Our review
Pros	Supports PDF and multiple document formats across Windows, macOS, and Linux Includes annotations, form filling, signatures, search, and presentation mode Adds text-to-speech, navigation panels, magnifier mode, and text selection	Free for private, non-commercial use Batch conversion, resizing, renaming, and lossless JPEG operations Camera RAW support, command-line options, and plugins
Cons	No OCR support Its scope is centered on documents rather than broader viewer workflows The open-source model may not suit buyers seeking paid-tier packaging	Windows-only desktop software Commercial use requires a paid license Batch automation is manual
Our verdict	Okular is a free, open-source document viewer from KDE for people who need to read, navigate, annotate, and interact with PDFs and other formats. It opens PDF, PostScript, TIFF, DjVu, image, XPS, EPUB, comic-book, and other documents.… Read the review →	IrfanView is a Windows desktop image viewer for beginners and professionals who need viewing, conversion, optimization, scanning, printing, slideshows, and batch processing in one compact application. Its strongest fit is for users… Read the review →

Strengths and trade-offs

• Okular — where it wins

  • Supports PDF and multiple document formats across Windows, macOS, and Linux
  • Includes annotations, form filling, signatures, search, and presentation mode
  • Adds text-to-speech, navigation panels, magnifier mode, and text selection

  Where it doesn't

  • No OCR support
  • Its scope is centered on documents rather than broader viewer workflows
  • The open-source model may not suit buyers seeking paid-tier packaging

• IrfanView — where it wins

  • Free for private, non-commercial use
  • Batch conversion, resizing, renaming, and lossless JPEG operations
  • Camera RAW support, command-line options, and plugins

  Where it doesn't

  • Windows-only desktop software
  • Commercial use requires a paid license
  • Batch automation is manual

• Okular8.9/10 · Free plan

  A capable open-source viewer for PDFs, forms, annotations, signatures, and more.

  Visit KDEFull verdict →
• IrfanView8.4/10 · Free plan

  A low-cost Windows viewer for batch conversion, resizing, renaming, and RAW files.

  Visit IrfanViewFull verdict →