Enabling video and PDF thumbnails in Dolphin
By default, KDE’s file manager Dolphin will display thumbnails for images but not for other file formats, like PDFs and videos. In a few steps you can enable thumbnails for those formats.
Install the required packages
Install these packages using your system package manager (
- PDF, PostScript, DVI:
Change Dolphin settings
Go to Dolphin, click on the three-bar menu and select
Configure -> Configure Dolphin.... On the
General section, select
Previews and check
Video files (ffmpegthumbs) and/or
PostScript, PDF and DVI Files. Click
OK to save the changes.