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After the installation is done, enter your Adobe ID and password, then click "Activate".
If you don't have an Adobe ID, click on the link to get one. It's free, and will only take a minute.
Detailed information about Adobe ID can be found here: Adobe account, password, and login FAQ
If you own a dedicated reader, connect your reader to your computer via a USB cable. ADE will automatically recognize it. Just click "Authorize device" and ADE will activate the reader on your account.
After a purchase, you will have access to a download link.
You can click directly on the Adobe Digital Editions badge to open and download the book in Adobe Digital Editions.
Another link is available which points to an .acsm file: it tells ADE where to download the book authorized to your account. Either save this file to your computer, then double click to open the file with ADE, or tell your browser to open the file directly with ADE.
Your book will be downloaded by ADE within a few seconds, and added to your library. From there you can send it to any authorized reading device, or read it directly on your PC. For more information about reading systems, see our ecosystem page.