Problem with hyperref and umlauts in the path of a link

I use hyperref to put links to external files into a TeX-document. That works fine until thera are german umlauts in the name of the external file. Is there any workaround?

P.S. It is a problem of the preview function in the editor texstudio. When I open the pdf-file in acrobat raeder, the link works even with umlauts in the path.

• Welcome to TeX.SX! Please add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. “Working example” means also “not working”: just an example of the code you're confronted with. – egreg Feb 27 '14 at 14:09
• File a bug report with textstudio. As a workaround rename the linked files (if possible). – Rüdiger Voigt Feb 27 '14 at 14:38