Skip to content

Okular vs OnTask

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

Okular icon
Okular
OnTask icon
OnTask

Okular vs OnTask: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Okular OnTask
Sugggest Score — —
Category Office & Productivity Office & Productivity
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

OnTask
OnTask

Description: OnTask is a task management app that helps teams organize projects and tasks. It has features like task lists, due dates, assignments, time tracking, calendars, notifications, and reporting.

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
OnTask
OnTask Features
  • Task management
  • Project management
  • Task lists
  • Due dates
  • Assignments
  • Time tracking
  • Calendars
  • Notifications
  • Reporting

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
OnTask
OnTask
Pros
  • Intuitive interface
  • Robust feature set
  • Good for managing team projects
  • Integrates with other apps
  • Customizable workflows
Cons
  • Can be pricey for large teams
  • Mobile app lacks some features
  • Steep learning curve initially
  • No offline access
  • Support could be more responsive

Pricing Comparison

Okular
Okular
  • Free
OnTask
OnTask
  • Not listed

Related Comparisons

Adobe Acrobat Reader
vs Okular vs OnTask
Adobe Acrobat DC
vs Okular vs OnTask
SumatraPDF
vs Okular vs OnTask
PDF-XChange Viewer
vs Okular vs OnTask

Learn More About Each Product

Okular
Okular
Reviews, pricing & alternatives →
OnTask
OnTask
Reviews, pricing & alternatives →

Ready to Make Your Decision?

Explore more software comparisons and find the perfect solution for your needs

Okular Alternatives
OnTask Alternatives
Browse More Software