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Okular vs UltraViewer

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

Okular icon
Okular
UltraViewer icon
UltraViewer

Okular vs UltraViewer: The Verdict

⚡ Summary:

Okular: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.

UltraViewer: UltraViewer is a free remote desktop software that allows users to access computers and servers remotely. It is lightweight, easy to use, and works across platforms including Windows, Mac, Linux, iOS and Android.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Okular UltraViewer
Sugggest Score — —
Category Office & Productivity Remote Work & Education
Pricing Free —

Product Overview

Okular
Okular

Description: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.

Type: software

Pricing: Free

UltraViewer
UltraViewer

Description: UltraViewer is a free remote desktop software that allows users to access computers and servers remotely. It is lightweight, easy to use, and works across platforms including Windows, Mac, Linux, iOS and Android.

Type: software

Key Features Comparison

Okular
Okular Features
  • Supports viewing PDF, PostScript, DjVu, CHM, XPS, ePub and other formats
  • Allows annotating, highlighting and adding comments to PDFs
  • Has different view modes like single page, facing, overview grid
  • Supports tabs for opening multiple documents
  • Has presentation mode for slideshows
  • Can fill interactive PDF forms
  • Allows saving filled forms as PDF or text
  • Has search functionality to find text in documents
  • Can encrypt PDF files
  • Has document information and metadata viewer
  • Supports table of contents navigation
  • Has different reflow modes for reading ePubs
  • Can print documents to system printer
UltraViewer
UltraViewer Features
  • Remote desktop access
  • File transfer
  • Screen recording
  • Chat
  • Works across platforms

Pros & Cons Analysis

Okular
Okular

Pros

  • Free and open source
  • Clean and intuitive interface
  • Good performance with large PDFs
  • Lots of annotation and markup tools
  • Supports many document formats
  • Available on Linux, Windows, macOS

Cons

  • Limited format support compared to some alternatives
  • Annotation features may be limited for some users
  • No cloud storage integration
  • Less features than paid alternatives
UltraViewer
UltraViewer

Pros

  • Free
  • Lightweight
  • Easy to use
  • Cross-platform compatibility

Cons

  • Limited features compared to paid options
  • Data privacy concerns

Pricing Comparison

Okular
Okular
  • Free
UltraViewer
UltraViewer
  • Not listed

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Learn More About Each Product

Okular
Okular
Reviews, pricing & alternatives →
UltraViewer
UltraViewer
Reviews, pricing & alternatives →

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