Adobe Acrobat 7 Professional - Manual (Page 613)

Viewing content problems in a separate window
Use Snap View to isolate an item when you're working with pages containing complex,
overlapping areas. Some items, such as document information fields or page labels, cannot
be displayed.
To view problem objects in a separate window:
1. Click the plus sign (+) next to a rule to display the problem objects found during the
inspection.
2. Select a problem object in the list.
3. Select Show Selected Page Element In Snap View.
4. In the Preflight Snap View window, choose an option from the Background Color menu.
All problem objects are displayed on this color in Snap View.
Snap view of problem object