23

I have just started using Okular and I love it. It has a lot of functionality that I need when I am in pdfs and it already opens up epubs automatically. How to I get it to open pdfs by default instead of "Document Viewer?"

I appreciate the help!

22

According to here, Right click the file of the format you want, select properties:

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Go to the open with tab, select the program you want to be the default for that type of file, then press the button Set as Default:

enter image description here

  • This only works when opening the file from the file manager, not when opening it from another program like Calibre. – systemovich Sep 24 '14 at 19:49
  • Worked with 14.04 LTS – XavierStuvw Jul 25 '17 at 19:17
  • Worked with 17.04. – Zach Boyd Sep 20 '17 at 23:01
10

Well, none of the other answers worked on 14.04, Okular simply doesn't show up in the list. But this worked perfectly:

mimeopen -d myfile.pdf

It will give you a list of applications that can open the file, and will also update the default application for you.

$ mimeopen -d myfile.pdf
Please choose a default application for files of type application/pdf

1) Print Preview  (evince-previewer)
2) Xournal  (xournal)
3) MuPDF  (mupdf)
4) Adobe Reader 9  (AdobeReader)
5) GIMP Image Editor  (gimp)
6) Document Viewer  (evince)
7) Other...

use application

Selecting one of these will set it as the default for application/pdf file types. You can easily set any executable to be the default by using the Other... option:

use application #7
use command: okular
Opening "myfile.pdf" with usr (application/pdf)

Aside: If okular doesn't work, you might want to try entering the full path (usr/bin/okular). You can find out where Okular is located by running which okular.

  • Perfect answer! – systemovich Sep 24 '14 at 20:04
  • 1
    @systemovich I think you can also just put okular instead of the full path, that should solve the problem with mimeopen thinking the application is called usr. – jmiserez Sep 25 '14 at 1:09
  • I've updated my answer to use okular instead of /usr/bin/okular. This should fix some naming issues in menus where it would otherwise say usr instead of okular. – jmiserez Sep 26 '14 at 8:42
  • In my case the answer askubuntu.com/a/204826/446253 worked with 14.04 – XavierStuvw Jul 25 '17 at 19:17
  • Works even if myfile.pdf is not a real file! – Autodidact Aug 23 '18 at 18:18
4

In Ubuntu 14.04, the file you need to edit is :~/.local/share/applications/mimeapps.list

The name of okular may varies. Someone may also find that there is no "Set as default" button.

So follow these steps:

Step 1: Right click on any pdf file => Open with => find Okular

The name of okular applications now should be specified in mimeapps.list. Now move to step 2.

Step 2: gedit ~/.local/share/applications/mimeapps.list

Step 3: Find okular in [Added association] and copy to [Default application] section.
In my case, it is 'application/pdf=kde4-okularApplication_pdf.desktop;'

And you are done.

2

In short, if I remember correctly :

  • Right click on a PDF,
  • Properties,
  • Open with,
  • Select an app,
  • Set as default.
2

First open a terminal and use this command:

gedit ~/.local/share/applications/defaults.list

After opening it, Under the [Default Applications] section add a line like this

application/pdf=okular.desktop;

Now save the file and exit gedit.

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