Okular

Multi-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse images, visualize Markdown documents, and much more.

File viewer · by Albert Astals Cid · okular.kde.org

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What Okular’s own pages say

What it says it doesMulti-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse images, visualize Markdown documents, and much more. okular.kde.org
Open sourceYes okular.kde.org
LicenseOkular is released under the GPLv2+ okular.kde.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-04. A missing field means AirStack has not found it on its pages.