Forgive me for my ignorance but, I recently purchased an eBook only to find that I also had to download Adobe Digital Editions in order to be able to view it on my Mac. The PDF that I downloaded in the process is encrypted. Does this mean that I can only view it using Adobe Digital Editions, or can any ePub Reader (including any that I install under Windows) be able to read it?
I know that there are many (better) ePub readers out there, the prominent ones of which are listed in the following post.
If I now were to install Calibre, for example, would it interfere with Adobe Digital Editions?
Note that I bought the eBook from http://www.ebook.com. This is the message I get when I try to double click on the PDF file to open it using Acrobat Reader:
This document requires digital rights management (DRM) features supported
by Adobe Digital Editions. Would you like to open it in Digital Editions now?
This is the information that I have been able to retrieve about the file using Adobe Digital Editions:
Permissions set by the publisher
Allow viewing: on any device
Allow copying: 5 copies with an additional copy accrued every 6 days,
capped at 5 copies, on any device
Allow printing: 20 pages with an additional page accrued every 1 day
12 hours, capped at 20 pages, on any device