Forum moved here!

Home / Installation: File Associations and iFilter


Good day.

Test-Driving Sumatra; during install I can chose to associate Sumatra with PDF files - will this create associations for all the formats that Sumatra supports (e.g. epub, mobi, etc) or just PDF?

Also during install, I can chose to install the PDF iFilter - does this filter support epub, mobi, etc, or does it just support PDFs? I’ve already installed the Adobe iFilter, any reason I should switch to Sumatra’s own?

Thank you.
Best Regards,


Currently only .pdf associations and it doesn’t actually work well in win 10 because they changed how things work.

Currently only PDF is included in iFilter.



Yeah, I know about Windows 10, stupid, everyone is having problems with the new system.

Thanks for the info.

Best Regards,