Okular

Spec sheet

Free plan

YesRead 24 Sep 2026 · okular.kde.org

Privacy

KDE software does not transmit information from end-user devices except after explicit user action, and telemetry is opt-in and disabled by default where provided.Read 30 Sep 2026 · kde.org

License

Okular is released under the GPLv2+ and its source code is available in KDE's GitLab repository.Read 30 Sep 2026 · okular.kde.org

Annotation tools

Can add notes, highlight or underline text, and add custom text to PDFs.Read 27 Sep 2026 · okular.kde.org

Annotation tools

YesRead 24 Sep 2026 · okular.kde.org

Annotations

Annotation mode adds inline and popup notes, highlighting, underlining and text.Read 30 Sep 2026 · okular.kde.org

Comic formats

Supports CBR and CBZ comic files.Read 27 Sep 2026 · okular.kde.org

Desktop platforms

Okular works on Linux, Windows, macOS and other platforms including BSD.Read 30 Sep 2026 · apps.kde.org

Digital signatures

Okular can view and verify PDF signatures, detect changes after signing and sign PDFs.Read 30 Sep 2026 · okular.kde.org

Distribution

Linux packages are available through distribution software stores, Flatpak is available from Flathub, and Microsoft Store is the recommended Windows installation source.Read 30 Sep 2026 · okular.kde.org

Document formats

Supports PDF, EPub, DjVU, and MD documents.Read 27 Sep 2026 · okular.kde.org

Document viewer

Okular is a multi-platform universal document viewer for PDFs, comics, EPUB books, images, Markdown documents and more.Read 30 Sep 2026 · okular.kde.org

Document viewing

Reads PDFs, comics, and EPub books, browses images, and visualizes Markdown.Read 27 Sep 2026 · okular.kde.org

Donation option

The site offers donations to KDE via PayPal and other ways.Read 27 Sep 2026 · okular.kde.org

Eco certification

Okular received the Blue Angel ecolabel in 2022 and was the first computer software worldwide to receive it.Read 30 Sep 2026 · okular.kde.org

Environmental label

Okular received the Blue Angel ecolabel for resource and energy efficiency.Read 27 Sep 2026 · okular.kde.org

Form filling

YesRead 24 Sep 2026 · okular.kde.org

Format support

Supported formats include PDF, PS, TIFF, DjVu, images, DVI, XPS, FictionBook, comic books, Plucker, EPUB and fax.Read 30 Sep 2026 · apps.kde.org

Free software

Okular is fully free software released under GPLv2+.Read 27 Sep 2026 · okular.kde.org

Image formats

Supports JPEG, PNG, GIF, Tiff, and WebP images.Read 27 Sep 2026 · okular.kde.org

Latest release

The page announces Okular 26.08, released on 20 August 2026.Read 27 Sep 2026 · okular.kde.org

Maintained by

The site and project are maintained by KDE Webmasters and associated with KDE.Read 27 Sep 2026 · okular.kde.org

Modular installation

Installations can include separate modules for specific formats and interface translations.Read 30 Sep 2026 · okular.kde.org

Nightly builds

Untested nightly builds are offered for Windows and macOS ARM and Intel.Read 30 Sep 2026 · okular.kde.org

Platform support

Okular is described as multi-platform.Read 27 Sep 2026 · okular.kde.org

Pricing page status

The pricing URL returns a 404 page and does not list paid plans.Read 27 Sep 2026 · okular.kde.org

Support channels

The Okular team provides a mailing list, IRC, Matrix, a forum and KDE's bug tracker for support and development communication.Read 30 Sep 2026 · okular.kde.org

Text selection

Selection mode supports copying and pasting almost anything from documents.Read 27 Sep 2026 · okular.kde.org

Text tools

Selection mode supports copying text, areas and tables, while Magnifier mode enlarges small text.Read 30 Sep 2026 · okular.kde.org

Text-to-speech

YesRead 24 Sep 2026 · okular.kde.org

Uninstallation behavior

Uninstalling Okular removes the application without touching data viewed, created or modified with it.Read 30 Sep 2026 · okular.kde.org

Plans and prices

Every Okular plan and price →

Where Specifiction places it

• File Viewer Software#4 of 318.4
• PDF Software#8 of 358.6
• File Reader Software#7 of 248.3
• PDF Readers#9 of 248.3