File associations in Linux

Ridcully · 05-28-2022, 02:39 PM

When I open a PDF from the file explorer program in Linux, it's opened in Okular. But when I open it from Calibre, it's opened in Calibre's own viewer.

How do I make Calibre open PDFs in Okular too? I couldn't find a setting for this in Preferences.

gbm · 05-28-2022, 04:19 PM

Quote:

Originally Posted by Ridcully

When I open a PDF from the file explorer program in Linux, it's opened in Okular. But when I open it from Calibre, it's opened in Calibre's own viewer.

How do I make Calibre open PDFs in Okular too? I couldn't find a setting for this in Preferences.

Preferences--interface--Bahavior

Use internal viewer for:

bernie

Ridcully · 05-28-2022, 06:27 PM

Hmm, PDF is already unchecked there. I unchecked everything else too for good measure but no dice.

(I also just noticed my distro has Calibre 5.12, so it isn't the latest version)

gbm · 05-28-2022, 07:04 PM

Quote:

Originally Posted by Ridcully

Hmm, PDF is already unchecked there. I unchecked everything else too for good measure but no dice.

(I also just noticed my distro has Calibre 5.12, so it isn't the latest version)

On my system clinking on a ebook that only has a PDF format opens in the system PDF reader.

Uninstall the distro version goto https://calibre-ebook.com/download_linux copy/paste the install command under Binary install into a terminal.

Code:

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

That will down load and install lateness calibre,

bernie

Ridcully · 05-29-2022, 03:30 PM

Thanks for the suggestion, bernie. The script installed the most recent version (5.43), but unfortunately the problem is still there.

It occurred to me it might be the library's fault since it's pretty big and I moved it from a Windows computer running 5.42, so I imported a PDF file in the default library, but it also opens in the ebook-viewer.

theducks · 05-29-2022, 09:57 PM

Linux is CASE sensitive. Win is not. When you try and launch a former Win Library, the case of the filename could be wrong.

Try the Quality Check plugin: Check and rename Book Paths
FWIW I would also expect that Library Maintenance would squawk about not found

kovidgoyal · 05-29-2022, 10:01 PM

calibre uses Qt which in turn uses xdg-open. Convince xdg-open to use okular and you will be fine.

rjwse@aol.com · 05-30-2022, 08:17 AM

You can use more than one PDF viewer in calibre and even set keyboard shortcuts for each. I use Okular and Document viewer. There are some slight differences and sometimes I prefer one over the other. Although calibre is the very best EPUB viewer on Planet Earth, you can also set keyboard shortcuts to open more than one EPUB viewer. Best Regards, Pop

Ridcully · 05-30-2022, 02:10 PM

Quote:

Originally Posted by kovidgoyal

calibre uses Qt which in turn uses xdg-open. Convince xdg-open to use okular and you will be fine.

Thanks, that was it, fixed it with xdg-mime.

Also, thank you rjwse for letting me know about the shortcuts

05-28-2022, 02:39 PM	#1
Ridcully Enthusiast Posts: 48 Karma: 2112464 Join Date: Apr 2017 Device: Kindle 10th gen. Paperwhite (2018)	File associations in Linux When I open a PDF from the file explorer program in Linux, it's opened in Okular. But when I open it from Calibre, it's opened in Calibre's own viewer. How do I make Calibre open PDFs in Okular too? I couldn't find a setting for this in Preferences.

05-30-2022, 08:17 AM	#8
rjwse@aol.com Addict Posts: 317 Karma: 2228060 Join Date: Dec 2013 Location: LaVernia, Texas Device: kindle epub readers on android	You can use more than one PDF viewer in calibre and even set keyboard shortcuts for each. I use Okular and Document viewer. There are some slight differences and sometimes I prefer one over the other. Although calibre is the very best EPUB viewer on Planet Earth, you can also set keyboard shortcuts to open more than one EPUB viewer. Best Regards, Pop Attached Thumbnails

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05-28-2022, 06:27 PM	#3
Ridcully Enthusiast Posts: 48 Karma: 2112464 Join Date: Apr 2017 Device: Kindle 10th gen. Paperwhite (2018)	Hmm, PDF is already unchecked there. I unchecked everything else too for good measure but no dice. (I also just noticed my distro has Calibre 5.12, so it isn't the latest version)

05-29-2022, 03:30 PM	#5
Ridcully Enthusiast Posts: 48 Karma: 2112464 Join Date: Apr 2017 Device: Kindle 10th gen. Paperwhite (2018)	Thanks for the suggestion, bernie. The script installed the most recent version (5.43), but unfortunately the problem is still there. It occurred to me it might be the library's fault since it's pretty big and I moved it from a Windows computer running 5.42, so I imported a PDF file in the default library, but it also opens in the ebook-viewer.

05-29-2022, 09:57 PM	#6
theducks Well trained by Cats Posts: 30,957 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Linux is CASE sensitive. Win is not. When you try and launch a former Win Library, the case of the filename could be wrong. Try the Quality Check plugin: Check and rename Book Paths FWIW I would also expect that Library Maintenance would squawk about not found

05-29-2022, 10:01 PM	#7
kovidgoyal creator of calibre Posts: 45,260 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	calibre uses Qt which in turn uses xdg-open. Convince xdg-open to use okular and you will be fine.

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