Note: If you are a long time user of Adobe Digital Editions, you may have an Adobe ID, and be wondering what a ByteBooks account is. Please see this help article for more information, and for instructions on migrating your Adobe ID to a ByteBooks account.

For new users, in order to transfer your DRM protected ebooks to your ereader device (such as Nook, Sony, or Kobo) you first need to authorise both Adobe Digital Editions (ADE) and your ereader device using a ByteBooks account (this is not the same as your eBooks.com account details).

If you do not authorise both devices you will still be able to download and read your ebooks within ADE, but it will display a CE_COPY_NOT_ALLOWED error if you try to transfer them to an ereader.

Please also note that if you have already downloaded DRM protected books and then authorise your ADE, the authorisation will not apply to the books you have already downloaded. So if you then try to transfer these books it will not work. You will need to fully authorise ADE, then delete these books from your bookshelf and redownload them so the authorisation can be applied at point of download.

If you have not already done so, please first install Adobe Digital Editions on your computer. Note you only need to install the program once, so if you have already installed ADE on your computer you can skip this step.

Then to authorise Adobe Digital Editions please follow these steps

1. Create a ByteBooks Account (if you don't already have one)
2. Open ADE on your computer
3. If you have a book open, please click 'Library' to return to Library view
4. Click 'Help'
5. Click 'Authorize computer...'

On the next screen it will ask you to enter three fields, an 'eBook Vendor' and your Adobe ID and Password.

• For 'eBook Vendor', please leave this as 'Adobe ID'. If it doesn't say 'Adobe ID', please select it from the drop down menu.
• For 'Adobe ID' please enter your ByteBooks account username (email).
• For 'Password' please enter your ByteBooks account password.
• Then click Enter to finish authorisation.

If you don't have an ByteBooks account already, or you have an Adobe ID and want to migrate to a ByteBooks account please see this help article.

Please be sure to make a note of your ByteBooks username and password in case you need to deauthorise your computer and reauthorise a new computer.

You are now ready to download your ebook.

If you also need to authorise your portable ereader device please also see our article on Authorising an ereader device with a ByteBooks Account.

If you ever need to deauthorise ADE please follow our steps on Deauthorising Adobe Digital Editions (ADE).

If you have any difficulty authorising your computer and this article has not resolved the issue please contact our support team.