SUMMARY When open a pdf file under for example \\flmfile\DPSOP\0023267 0023268.pdf, it can open, but when I make changes and try to save, it give error and cannot save. STEPS TO REPRODUCE 1. go to any network drive for example my case \\flmfile\DSOP 2. click right on file 0023267 0023268.pdf and run with okular.exe. 3. make some changes, example highlight and then click save. OBSERVED RESULT a pop up message Information-Okular "File could not be saved in 'file://flmfile/DPSOP/0023267 0023268.pdf'. Error:'Could not rename partial file //flmfile/DPSOP/0023267 0023268.pdf. Please check permissions.'.Try to save it to another location. EXPECTED RESULT Should be able to save. I suspect maybe is the format, \\flmfile\DPSOP instead of //flmfile/DPSOP SOFTWARE/OS VERSIONS\\ 21.08.1 Windows: 10 macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: 5.86.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION