Okular

Okular crashes can be caused by outdated software. Keep your developer products up to date by installing the latest updates.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.

Changing Default Programs in Windows

1. Right-click on your file, then choose the "Open with" option and select "Choose another application" from the available options;
2. From the options listed in the pop-up window, specifically choose Okular as the application to handle your file;
3. Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.

Change the default app to open files on Mac

1. Right-click or use Control + Left-click on the desired file to access the file’s context menu;
2. Select "Open in application" and click "Other";
3. Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
4. Choose "All Programs" in this menu and search for Okular. Check the box next to "Always open in app" to make it the default program.