/e/ OS per default comes with the PDF reader PDF Viewer Plus. This App is about 2 years old and F-Droid states that it has known vulnerabilities.
Yes, and yes.
Thanks as always for your fast and competent replies.
(Interestingly enough not even the topic suggestions didn’t show this thread, after I entered my title, but showed a view, which didn’t even have PDF Viewer Plus in the title.)
https://community.e.foundation/search?q=pdf%20viewer%20plus, 6th hit for me .
I guess I checked the wrong places to closely.