Mapsoft DogEars is a publishing tool for use with Adobe Acrobat for marking pages within a document so that you can quickly flip back to them when you require. Marking an electronic file with dog-ears is analogous to folding pages down in a physical book to mark your place. Once you mark a page with a dog-ear a symbol representing a turned-down page is placed on the top-right of that page.
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.