I searched for other posts but I didn't find my case.
I have owncloud 10.0.3 in a private Ubuntu 17.04 installation.
Browsing my files, when I click on a pdf file, the viewer does not show anything and I've only a blank screen.
Other viewers, such as image viewer or txt viewer, works properly, but pdf does not.
How can I fix this?
Please consider that I'm quite new to owncloud...