The Preview panel (Window > Preview) of Bridge lets you view each page of multi-page documents.
1. You can view each page of a multi-page InDesign CS5 file. For this to work, in InDesign CS5 you must choose Preferences > File Handling, and choose All Pages from the Pages drop down list.
2. You can preview each page of any multipage PDF file
3. You can preview each artboard of a multiple-artboard Illustrator CS4 or newer file.