Hi Mark
I’m able to use the file-upload for images but there seems to be no way to do the same with PDF-files.
I was trying to link a simple PDF within the richtext-field but couldn’t figure out how to do it. Any hints?
Hi @visions- the “datei” (“files”) icon you’re pointing to in your screenshot is meant for exactly that. That should let you upload PDFs and browse the existing files in the media source(s) available to the user, and insert those as a link. If that’s not working for you, please do elaborate 
Hi Mark,
I have a client with this exact problem.
Other buttons like image or video insertion do popup. however files does not pop up. In another browser/computer the button works.
I suspect this to be a browser cache problem, however clearing browsercache, logout en re-login does not help.
Any ideas?
Can you take a look at the browser developer console before clicking on the file button? Perhaps something is triggering an error…