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This question comes up in one form or another at least once a month.
The answer is somewhat technical. Your Adobe ID is embedded in your copy
of Digital Editions when you download and activate the product. Digital
Editions uses the ID when it builds keys for ebooks that you download, so
each ebook is identified to the particular Adobe ID in Digital Editions at
the time of the download. Now, let's add the DRM overlay: the rules for
DRM-protected material require that the user (you) are identified to the
material specifically (via Digital Editions and its assignment of a key to
the ebook. Same thing as non-DRM ebooks.
The implications are as you've outlined. You'll be able to read ebooks
that you downloaded under the Adobe ID that's active at the time you try to
read them. If it doesn't match with your ebook's key, you won't be able to
Most of us use our email address as our Adobe ID, but you didn't have to do
that. You could have made up an independent string and used it. But Adobe
has provided methods for someone who has to change or just changes their
email address if it's their Adobe ID. You go through the 'deauthorize'
process and re-authorize under the Adobe ID you wish to use at the time.
The ebooks you'll be able to see and access were downloaded under that
Adobe ID. The others won't show up.
AFAIK, there is no 'conversion' capability to take ebooks downloaded under
one ID and change their key to reflect the new ID.
Thank you. I seem to understand things a bit better now.
You wrote that I did not have to use my email address as my Adobe ID. When I created one on Adobes webpage I was not given this option. I had to use my email address so I am wondering where Adobe hides that and where I can change it. This would have been my preferred method since I cannot be sure I am going to have or use the email address I used when I signed up.
Looking at ADE's "Computer Authorization" window it tells me that my computer is authorized to the following account "email@example.com | AdobeID (urn:uuid:78cbe188-bbz3-..." .
To me this suggests that the AdobeID consists of that cryptic string and that there is an email address mapped to it. Somehow I have the feeling that it should be possible to change the email address part without changing the urn:uuid part.
Adobe does appear to tell you to use your email address for your Adobe ID.
But, in certain places, such as your sign-in screen, they say 'usually your
email address' when they mention your user ID. I would like them to be
more direct and tell you that you don't HAVE to use your email address. I
used my email address because I had not figured this out yet when I started
I'm not an Adobe employee, but I've been in the IT world for over 4
decades. You're right about the ID. The information displayed in the
Computer Authorization is in two parts. The first one is the 'plain'
version of your user ID. The second one is a display that represents the
way the computer stores that same information. The second one is embedded
in your ebooks' XML file, identifying the ebook to ADE. It would be an
exceptional challenge for programmers to go change that information - and
they would have some legal hurdles to address when it comes to DRM