Reader 8.0 changes the way you open and manage eBooks. Now, you use the free Adobe Digital Editions software to read and organize eBooks and other publications. Digital Editions is a separate web-based Rich Internet Application (RIA) that replaces the eBooks features in previous versions of Reader.
When you install Digital Editions, your existing bookshelf items are automatically imported and available within the new Digital Editions bookshelf experience. You can also manually import individual PDFs into your Digital Editions bookshelf.
To learn more about how to make the transition to this new solution for eBooks and for a link to the secure download website, go to the Adobe website.