Created attachment 114629 [details] The button that does not work In the file manager, I right-click on a file and click "Properties" to bring up the "Properties for..." menu. When I click "File Type Options", nothing happens. My real goal is to have PDFs open in an embedded viewer in Konqueror rather than an external window, so that I can then use "Ctrl+Shift+L" to have a split-screen PDF viewer. I had this working on Ubuntu 14 but I cannot figure out how to do it since upgrading to Ubuntu 18. I think that the "embedded viewer" option is under "File Type Options" but am not completely sure, and can't find any clear documentation on this issue.
does "kcmshell5 filetypes" work for you?
(In reply to Burkhard Lueck from comment #1) > does "kcmshell5 filetypes" work for you? That helped! The command failed but with a suggestion to install kde-cli-tools, which I did. Now the button has started working, and I can also access the file associations through that command. But even after selecting "Show file in embedded viewer" and "Apply", Konqueror launches a separate viewer for PDFs, whether I use Okular or Document Viewer. Image files seem to open in the embedded viewer just fine. I'm guessing I just need to install something more, but don't know what.
Created attachment 114636 [details] Functionality works on this system, which lists the okularpoppler service
(In reply to william.mann from comment #3) > Created attachment 114636 [details] > Functionality works on this system, which lists the okularpoppler service On a different system that was recently updated, I find that the functionality works fine, and the menu also lists an "okularpoppler" service that is missing on the computer where I'm having the problem. So I wonder if I just need to install that service, but I can't find any information on how to do that.
On Debian based system: :~$ locate okularpart|grep /usr /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so :~$ dpkg -S /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so okular: /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so So you need the package okular to show embeded PDF files in konqueror
(In reply to Burkhard Lueck from comment #5) > On Debian based system: > :~$ locate okularpart|grep /usr > /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so > :~$ dpkg -S /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so > okular: /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so > > So you need the package okular to show embeded PDF files in konqueror That did it, thank you so much for your help!