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 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.

Whether the first page should be centered or aligned to the left when displaying the pages in facing and overview mode.

This options represent the number of columns to use in the overview mode.