Every major publisher sells e-books with encryption that basically prevents unlawful sharing and distribution to file sharing sites. Adobe is the leading DRM solution and sometimes users find it hard to read their purchased content on mobile devices. In order to make readers lives easier, Adobe has just released their seminal Digital Editions app that was designed exclusively for the Apple iPad.
The Adobe Digital Editions app for the iPad will allow you to read any PDF or EPUB file that you bought from online retailers. It also has support for content that you borrowed from the library.
Read the full article @ Goodereader.