Is it necessary to percent-encoding (URL encoding) all hyperlink UTF-8 characters today? Some Windows programs like PDF-XChange have problems to open such encoded hyperlinks (e.g. "f%C3%BCr" is problematic but not "für").
For space (%20) an exception can be made for web browsers and other programs that handle space as resource separator.
MS Word 2013 doesn't percent-encoding hyperlinks. I haven't seen a problem due to that behavior. Someone else?
Could you please share a document created by MS Word 2013 ?
Created attachment 138438 [details]
Example files in a zip archive (odt, docx and the exported pdf files)
Xisco, the zip archive contains:
* "Bug 112225 Straßenbrücken.odt" created with LibO 6.1 with a link to the docx file
* "Bug 112225 Straßenbrücken.docx" created with MSO Word 2013 with a link to the odt file
* pdf file that was saved from within MSO Word 2013
* pdf file that was exported by LibO 126.96.36.199.alpha0+ (Win-x86_64@42, 2017-12-12_00:23:14, Windows 10.0)
PS: I missed to use the option "Export URLs relative to file system" in the PDF options ob LibO 6.1. Anyway, it's odd that you can't use a relative path in the hyperlink dialog.