Originally Posted by ltr
Sure, but if you're someone like myself who purchases all their books from Kobo, then the ability to read the books on my PC is limited to ADE or the Kobo desktop aplication. Calibre cannot view books with DRM (Digital Rights Management).
You cannot view DRM epubs with Calibre, but you can still load them into Calibre and then load them onto your Kobo from there. This allows you to take advantage of the Tagging and metadata features in Calibre.