[okular] [Bug 467522] New: Request for a new epub backend based on qt-webengine for Okular

[Chromer]

https://bugs.kde.org/show_bug.cgi?id=467522

            Bug ID: 467522
           Summary: Request for a new epub backend based on qt-webengine
                    for Okular
    Classification: Applications
           Product: okular
           Version: unspecified
          Platform: Archlinux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: EPub backend
          Assignee: okular-devel at kde.org
          Reporter: downloader030 at gmail.com
  Target Milestone: ---

**SUMMARY**
The current epub backend in Okular is quite ineffective and has been the
subject of numerous bug reports. I believe that a new backend based on
qt-webengine could address many of these issues and greatly improve the
performance and stability of Okular when viewing epub files.

Furthermore, as qt-webengine is now a mandatory dependency of the Plasma
desktop, it makes sense to take advantage of this technology in Okular as well.
I understand that this may require a significant amount of development work,
but I believe that the benefits of a new, more effective epub backend would
greatly outweigh the costs.

It is worth noting that currently, the most popular and effective EPUB viewer
on Linux is Foliate, which utilizes webkit2gtk. However, given that
Qt-webengine is a core dependency of Plasma desktop, it would make sense for
Okular to also utilize this backend for EPUB viewing. This would improve the
overall user experience and provide a more consistent integration with the KDE
desktop environment. Thank you for considering this feature request.

**SOFTWARE/OS VERSIONS**

Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104
Qt Version: 5.15.8

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