Preview - Outline only appears?
I wonder if somebody might be able to help?
Issue:
Anywhere throughout the system where a preview is meant to appear or indeed the Preview application is used it opens but does not appear. For example, if I try to open a PDF or a JPEG through preview the file opens however just an outline/silhouette appears and the document cannot be read (picture attached). This is the same in Finder if I click on a file, the usual small preview does not appear.
Solutions tried:
I restarted the computer several times and same issue appears. I also repaired disk permissions but still the same issue persists.
Any suggestions/pointers to fixing this would be welcomed!
MacBook Air, OS X Yosemite (10.10.1)