Okular
456 likes
Multi-platform document viewer offering extensive format support, including PDF, comics, images, EPUB, and Markdown, with annotation tools, sidebar previews, text-to-speech, DRM management, cross-platform compatibility, and integration with KDE Frameworks libraries.
License model
- Free • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Windows
- Linux
- BSD
- KDE Plasma
- Snapcraft
- Linux Mobile
- Flathub
- Haiku
Features
Okular News & Activities
Highlights All activities
Recent News
- Maoholguin published news article about KDE Plasma
KDE Gear 24.08 released: major enhancements across Dolphin, Konsole, Kdenlive, and moreThe KDE Project has announced the release of KDE Gear 24.08, the latest stable version of its open-...
Recent activities
jdakfkj333 added Okular as alternative to Minimal eReader
Hexye added Okular as alternative to Hexye PDF Tools
trertre added Okular as alternative to EPUB Viewer Online and Translator for PDF and EPUB- erguncagan0 liked Okular
Okular information
Developed by
KDE Licensing
Open Source and Free product.Rating
Average rating of 4.2Alternatives
113 alternatives listedSupported Languages
Comments and Reviews
It is a very good alternative to Sumatra, and evidently its greatest advantage over this are the PDF annotations. Some functions that I use a lot in Sumatra and that are NOT in Okular are:
Open multiple files in tabs, in a single window. Okular works Office style, it will open one window per file, which is not practical.
File history, and possibility to reopen them ALL automatically when starting the program.
In the Windows version, Okular occupies more than 400 Mb, while Sumatra less than 20 Mb.
Finally, a very commented problem is the lack of a "standard" installer in Windows. I had the same problem, and after abandoning all this and trying MuPDF (quite limited) I gave it a last chance, and it turns out that IF THERE IS an installer that is very hidden...the link is below.
There you will find the typical *exe, and also a 7z compressed that will make the portable version (the executable is in the bin folder). If you navigate within that web, you will also find the "Nightly" versions of Okular, and also other applications of the KDE community
Mensaje Original:
Es una muy buena alternativa a Sumatra, y evidentemente su mayor ventaja respecto a esta son las anotaciones en PDF. Algunas funciones que uso bastante en Sumatra y que NO están en Okular son:
Abrir múltiples archivos en pestañas, en una sola ventana. Okular trabaja al estilo Office, se abrirá una ventana por archivo, lo cual no es práctico.
Historial de archivos, y posibilidad de reabrirlos TODOS automaticamente al iniciar el programa.
En la version de Windows, Okular ocupa mas de 400 Mb, en cambio Sumatra menos de 20 Mb.
Finalmente, un problema bastante comentado es la falta de un instalador "estándar" en Windows. Tuve el mismo problema, y tras abandonar todo esto y probar MuPDF (bastante limitado) le di una última oportunidad, y resulta que SI EXISTE un instalador que esta muy oculto...lo encuentran en:
https://binary-factory.kde.org/view/Windows%2064-bit/job/Okular_Release_win64/
Alli encontraran el típico *exe, y tambien un comprimido 7z que hará las veces de versión portable (el ejecutable esta en la carpeta bin). Si navegan dentro esa web, también encontrarán las versiones "Nightly" de Okular, y tambien otras aplicaciones de la comunidad KDE.
Although this might have been true in the past, today Okular does support tabs. You can enable it in the settings.
Thanks @Brouware. You are a life saver. :)
Okular on Windows does not support epub. Source: [https://forums.linuxmint.com/viewtopic.php?t=195708](https://forums.linuxmint.com/viewtopic.php?t=195708)
I don't know its .pdf capabilities.
There's a lot to like here, because it is a competently assembled and FOSS reader that does PDF and markdown. But on PDFs, the use of forms - which is my main reason to interact with PDFs - feels hopelessly clunky for now, superimposing giant text boxes over the PDF instead of transparent guide boxes. If you don't edit PDFs as much as I do you may still like it, and I'd certainly fall back to it in a pinch, but it's just a little too intrusive on that one thing for me.
Open Source and Free, it looks like a good choice for editing PDFs. If you look far right on the pull down menu under highlite, you will see a text option. Does not open .rtf files. Another perhaps much more lightweight and free option with similar abilities is
Ashampoo PDF Free
Lightweight and have a text highlighting feature.
Hope in the future have a merge and organize pages.
Good software but still can't edit text.
My use case for an alternative to Acrobat Reader is due to it having a large footprint resource-wise on my computer when I just need to read PDF docs and fill the occasional form. Plus, I don't think I will ever need the paywalled functionality that is sitting there waiting to be used once you have a subscription.
So, I've been on the fence for a while between SumatraPDF and Okular. They are both very lightweight and capable. However, I finally settled with Okular due to the forms (which I do use) and annotation support.
However, I do have a wish list of some improvements:
There is one "downside" to Okular if you are counting the MBs used up by apps. While lightweight, it does take considerably more resources than SumatraPDF.
EDIT: I have since found a nuance to the tab behaviour. If you already have Okular open with a document, and you try to open another one via the File Open or File Open Recent menus, it does get loaded into a new tab. Drag-n-drop also works. The problem seems to be with opening another doc from File Explorer.
EDIT 2: Found that it is a known issue 427953 – Unique instance and open in tabs ignored