Whether to show scrollbars for the document view.

Whether the thumbnails view should always display the current page or not.

Whether to show some informative messages on startup, file load, etc..

Whether to show the current document title in the title bar of Okular window. If no metadata for title found in the document or this item is unchecked Okular shows filename of the document.

You can choose any of two options, Display file name only or Display full file path.

Whether Okular should obey DRM (Digital Rights Management) restrictions. DRM limitations are used to make it impossible to perform certain actions with PDF documents, such as copying content to the clipboard. Note that in some configurations of Okular, this option is not available.

Whether opened files should be automatically checked for changes and updated, if necessary.

Whether Okular should ask the user which backend to use in case of more than one backend able to open the current file. If unchecked, Okular will use the backend with the highest priority.

This option represents the number of columns to use in the overview mode.

Here you can define the percentage of the current viewing area that should be visible after pressing Page Up/Page Down keys.

This options specifies the default zoom mode for file which were never opened before. For those files which were opened before the previous zoom mode is applied.