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Okular vs ProjectLibre

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

Okular icon
Okular
ProjectLibre icon
ProjectLibre

Okular vs ProjectLibre: 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.

ProjectLibre: ProjectLibre is an open source project management software. It allows users to plan, monitor, and control projects and tasks with features like Gantt charts, resource management, reporting, and collaboration tools.

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 ProjectLibre
Sugggest Score — —
Category Office & Productivity Office & Productivity
Pricing Free Open Source

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

ProjectLibre
ProjectLibre

Description: ProjectLibre is an open source project management software. It allows users to plan, monitor, and control projects and tasks with features like Gantt charts, resource management, reporting, and collaboration tools.

Type: software

Pricing: Open Source

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
ProjectLibre
ProjectLibre Features
  • Gantt charts
  • Resource management
  • Task management
  • Reporting
  • Collaboration tools

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
ProjectLibre
ProjectLibre
Pros
  • Free and open source
  • Similar features as Microsoft Project
  • Good for small teams
  • Integrates with Google Drive and Dropbox
Cons
  • Limited features compared to paid options
  • Steep learning curve
  • Lacks advanced reporting and analytics

Pricing Comparison

Okular
Okular
  • Free
ProjectLibre
ProjectLibre
  • Open Source

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Learn More About Each Product

Okular
Okular
Reviews, pricing & alternatives →
ProjectLibre
ProjectLibre
Reviews, pricing & alternatives →

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