When I click the Adobe Digital Editions on Adobe website on my computer, a window titled " InDesign CS6" pop up; When I click the Adobe Digital Editions on Adobe website on my iPad, a window titled " Adobe Digital Editions" pop up. Why different? is InDesign CS6 is an updated version of Adobe Digital Editions? Please adivse me.
No, it is something completely different. InDesign is the layout program from Adobe to create print stuff or also electronic formats like PDF or EPUB and others. It is a program which will require a lot of know how to work with.
You should download and install ADE on your computer. If you have never worked with InDesign, it might be not that what you want to use.
No, utterly different. Adibe Digital Editions is free software for reading books. InDesign is paid-for, hundreds of dollars for the CS5 version, and is used by professional designers and publishers to MAKE books.