How to authorize a supported eBook reader with an Adobe ID
This article will help you authorize compatible devices like the Sony Reader, NOOK, and more with an Adobe ID so that you can read downloaded DRM-protected eBooks.
To transfer eBooks to an eBook reader, both the computer and device must be authorized with the same Adobe ID.
Note: These instructions are for ADE 2.0. Please make sure you are using the most up-to-date version before continuing.
What you need
Authorizing your eBook reader
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Connect your eBook reader to the computer.
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Open Adobe Digital Editions (ADE) on your computer. You should see your eBook reader under 'Devices.'
If your eBook reader is missing, make sure it is plugged in, then restart ADE.

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Select an eBook you would like to transfer, then drag it over to your eBook reader.

ADE will automatically register your reader then transfer the selected eBook.