I have a problem as this post: https ://discourse.joplinapp.org/t/pdf-viewing-i-can-only-see-the-filename/25706, but I couldn't solve it by follow the instruction.
I have turned on the PDF previewing in settings, and I couldn't preview PDF docs whether I click the button to toggle between the different views.
I think this problem could be settled easily. Anyone know the answer to it?
I think I have figured out the problem, that is because these pdf docs are imported from Evernote.
Do anyone know how to preview these imported Evernote pdf docs?