SOFTWARE LICENSE GUIDE
Okular
Okular is a universal document viewer developed by KDE. It supports a wide variety of document formats, including PDF, PostScript, DjVu, and more.
What it does
Okular allows users to view, annotate, and sign documents. It provides features like text selection, search, thumbnail previews, and support for digital signatures.
Who it may suit
Linux users and KDE Plasma desktop users who need a versatile and feature-rich document viewer.
Free tier and license
Free and open-source.
Limitations to check
While it supports many formats, complex or proprietary features within certain document types might not be fully rendered or editable. Its primary development focus is on Linux.
Licensing notes
Okular is licensed under the GNU General Public License v2.0 or later (GPL-2.0-or-later), allowing free use, modification, and distribution.
Verification details
Last licensing verification recorded: 2026-10-28.
Directory record last updated: 2026-10-28. These are separate dates: a record update does not necessarily mean the publisher's terms changed.
AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.
Frequently asked questions
What document formats does Okular support?
Okular supports a wide range of formats including PDF, EPUB, DjVu, PostScript, TIFF, images, and Markdown, among others.
Is Okular free to use?
Yes, Okular is free and open-source software.
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