How to add a Signature stamp to Okular

Solution 1:

First, please place your image in ~/.kde/share/icons, creating the icons folder if need be. (To be on the safe side, please use lowercase for the image name and avoid spaces).

Then, as shown in the image above, you need to type or paste in the entire path and filename like

/home/rundekugel/.kde/share/icons/mysignature.png

assuming that your username is rundekugel and that mysignature.png is the relevant image.

This is a recognized usability issue in Okular version 1.3.3 that ships in Bionic and is being addressed in Make custom stamp image support more discoverable.