Dear Maintainer, I have a few pdf files with filenames which are probably using some Chinese encoding which is invalid when trying to interpret as UTF-8. qpdfview can't open them, neither when passing the name on the commandline nor when selecting the file in the Open File dialog. A simple test to reproduce the issue, using bash and UTF-8 locale: cp test.pdf $'TEST\310.pdf' qpdfview TEST<tab>