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Okular's my favourite PDF reader -- I install it even on Microsoft Windows machines I have to use -- but it doesn't read .epub or .mobi files unfortunately.

• horstmeyer 6y ago
  I'm pretty sure it does for me. I think it's probably a package that it uses. I'll check tomorrow and let you know.
  • Jedd 6y ago
    Hot dang you're absolutely right - I'd never discovered this package before: okular-extra-backends Includes support for mobi and epub, as well as TIFF, CHM, Markdown etc. Weirdly the .epub and .mobi are quite slow to open compared to PDF, but I'm happier now for the suggestion to go hunting for this - thank you!
    • qwerty456127 6y ago
      > okular-extra-backends > Includes support for mobi and epub Curious. I didn't know that was there. > as well as TIFF, The last time I've tried it didn't seem to support multi-page TIFFs > CHM Very curious. Never seen a good alternative CHM viewer (although seen apps advertised as such numerous times).
      • Jedd 6y ago
        Yeah, it's well hidden - I'm sure I've looked for okular support for mobi & epub a while back, mostly because 'ebook-reader' that comes with calibre is a bit pants. Must have been quite a while back, I guess. On Debian unstable I'm seeing okular-extra-backends (as mentioned) along with packages for ODP and ODT, as well as an okular-mobile package (postscript, dejavu, DVI, comic books, fictionbook, Plucker, etc. I've just tried this with an Asterix comic in .cbr format - no joy. Works a treat with a Deadpool .cbz file though. For CHM, and I've not [ found / been forced to acquire for want of a better format ] any of those since 2008, kchmviewer is pretty fine (I'm a KDE user so it fits nicely, though like most KDE apps it only wants some KDE / QT libraries to run on your preferred DE).