Sharing or transfer to chromebook

Hi,

I have purchased some agility books from a company called Clean Run on agility.  I have downloaded them to Adobe Digital Edition and am reading them.  I do not want to have to read from my desktop (running Windows 10).  I would like to read them on my Chromebook.  I have downloaded the app Overdrive on my Chromebook.  How do I get my books from ADE to Overdrive?  Please help and thanks in advance for any ideas.

Jocelyn