How can I authorize and de-authorize my Adobe Digital Editions?
To read a book that is protected with Digital Rights Management (DRM) you need to authorize Adobe Digital Editions on your device.
In order to authorize your Adobe Digital Editions:
If you don't have an Adobe ID you will be asked to create one.
You can also authorize without an ID, but then you will only be able to read the book on the current device. You won't be able to transfer it to an eReader or other computers or tablets.
Keep in mind that the book becomes linked to the Adobe ID that is currently authorized. So, if several people use the same computer, remember to always authorize with your Adobe ID before downloading a new book.
Sometimes it can be helpful to de-authorize Adobe Digital Editions:
