Hi, I have the following problem with some pdf files, can somebody help me? It's something to do with file types, but I can't figure out what's wrong. Apparently some (but not all!) pdf are regarded as type application/octet-stream instead of application/pdf. But as far as I can see the file associations are correctly set to *.pdf -> application/pdf Is there any other setting that defines the type of a file? When clicking on them, it doesn't start kghostview but asks for a program. selecting kghostview then tells me that the file has type "application/octet-stream" and kghostview can't handle the file. Also from inside kghostview I can't open them. File names are something like: Heft_00_1.pdf so there is nothing unususal here. (Sorry I can't provide test files, because they contain information..) This happens only with *some* pdfs. Most of my pdf files work as expected. Some of the strange ones definitely worked before, but I can't say when that stopped working. I can open all of them with acroread. In the file association, *.pdf and *.PDF is set to application/pdf, and kghostview as the default viewer, and acroread as an alternative. On the other hand, application/octet-stream has no filename pattern defined. Any ideas are greatly appreciated! Thanks Stephan ___________________________________________________ . Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.