MobileRead Forums - View Single Post - what is the syntax for using the 'opener' tweak for a file?

rmarhi · 04-21-2025, 03:52 PM

Windows 10, Calibre 8.3.0

I am testing using a different Windowa reader for some files (rather than using the default or the calibre viewer) but it only opens the windows default (Sumatra in my case).

As a test, I have deselected "EPUB" in <preferences / behaviour> settings.

I attempted the following permutations:
openers_by_scheme = {'file': 'Acrobat.exe %u'}
openers_by_scheme = {'file': 'C:\\Program Files\\Ado ,...snip...> at\\Acrobat.exe %u'}
openers_by_scheme = {'file': 'C:\\Program Files\\Ado ,...snip...> at\\Acrobat.exe'}

I also tried these (with full pathname as well)
{'epub': 'Acrobat.exe %u'}
{'EPUB': 'Acrobat.exe %u'}

What is the correct syntax / command to have a different reader open the file?

04-21-2025, 03:52 PM	#1
rmarhi Member Posts: 16 Karma: 10 Join Date: Jun 2018 Device: kobo libra	what is the syntax for using the 'opener' tweak for a file? Windows 10, Calibre 8.3.0 I am testing using a different Windowa reader for some files (rather than using the default or the calibre viewer) but it only opens the windows default (Sumatra in my case). As a test, I have deselected "EPUB" in <preferences / behaviour> settings. I attempted the following permutations: openers_by_scheme = {'file': 'Acrobat.exe %u'} openers_by_scheme = {'file': 'C:\\Program Files\\Ado ,...snip...> at\\Acrobat.exe %u'} openers_by_scheme = {'file': 'C:\\Program Files\\Ado ,...snip...> at\\Acrobat.exe'} I also tried these (with full pathname as well) {'epub': 'Acrobat.exe %u'} {'EPUB': 'Acrobat.exe %u'} What is the correct syntax / command to have a different reader open the file? Last edited by rmarhi; 04-21-2025 at 03:56 PM.