141
I Use This!
High Activity
Analyzed 2 days ago. based on code collected 2 days ago.

Project Summary

okular is an universal document viewer based on KPDF for KDE 4.

Its development began as part of Google's Summer of Code program. The description of the project is located at KDE Developer's Corner.

okular combines the excellent functionalities of KPDF with the versatility of supporting different kind of documents, like PDF, Postscript, DjVu, CHM, and others.
The document format handlers page has a chart describing in more detail the supported formats and the features supported in each of them.

Tags

annotation c++ chm comicbook djvu dvi epub fb2 fictionbook functionbook graphics images kde odf odt office opendocument pdf pdf_reader plucker postscript ps qt qt4 reader thumbnail tiff viewer xps

Quick Reference

GNU General Public License v2.0 or later
Permitted

Commercial Use

Modify

Distribute

Place Warranty

Forbidden

Sub-License

Hold Liable

Required

Distribute Original

Disclose Source

Include Copyright

State Changes

Include License

These details are provided for information only. No information here is legal advice and should not be used as such.

Project Security

Vulnerabilities per Version ( last 10 releases )

There are no reported vulnerabilities

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

Did You Know...

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About Project Security

Languages

C++
57%
XML
36%
C
5%
6 Other
2%

30 Day Summary

Sep 24 2026 — Oct 24 2026

12 Month Summary

Oct 24 2025 — Oct 24 2026
  • 466 Commits
    Down -25 (5%) from previous 12 months
  • 53 Contributors
    Up + 13 (32%) from previous 12 months