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Okular vs RedNotebook

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

Okular icon
Okular
RedNotebook icon
RedNotebook

Okular vs RedNotebook: 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.

RedNotebook: RedNotebook is a free and open-source journal app for Linux that allows keeping a journal in a sleek easy to use interface. It includes features like word count, templates, tags, search and more.

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 RedNotebook
Sugggest Score — —
Category Office & Productivity Office & Productivity
Pricing Free 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

RedNotebook
RedNotebook

Description: RedNotebook is a free and open-source journal app for Linux that allows keeping a journal in a sleek easy to use interface. It includes features like word count, templates, tags, search and more.

Type: software

Pricing: Free

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
RedNotebook
RedNotebook Features
  • Daily journal entries with date stamp
  • Word count statistics
  • Templates for journal entries
  • Tagging and searching entries
  • Customizable themes
  • Data export

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
RedNotebook
RedNotebook
Pros
  • Free and open source
  • Intuitive and easy to use interface
  • Good feature set for a journaling app
  • Available on Linux, Windows and Mac
  • Active development and community support
Cons
  • Limited mobile support
  • No collaboration features
  • No audio/video entry options
  • No user account support

Pricing Comparison

Okular
Okular
  • Free
RedNotebook
RedNotebook
  • Free

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Learn More About Each Product

Okular
Okular
Reviews, pricing & alternatives →
RedNotebook
RedNotebook
Reviews, pricing & alternatives →

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