I've run into some issues trying to get a working version of Okular. My preference is to use the newest version, so I had to install flatpack v20.12.3. It worked OK, but it didn't integrate with MATE desktop well. There is a configuration option Open new files in tabs
, which works only from inside Okular, but not from Caja, which opens a new instance of Okular each time I double-click on .pdf file, instead of opening a new tab in existing instance of Okular. Is this a price one must pay for using flatpak or snap?
I removed that flatpak and installed an old .deb v1.9.3 provided by Ubuntu. It works as expected and opens new file in a new tab. I noticed something weird when I went to associate pdf
file extension with Okular, though:
There is more copies of Okulars in this dialog than you can see on the screenshot above.