As we reported earlier, Adobe has for the first time in the product's history begun offering free downloads of a 30-day tryout version of Acrobat 6 Professional -- at least for Window's users. No such offering is apparently planned for the Macintosh.
Another first with the current version that some may not be aware of: The Adobe Store finally offers the option of purchasing and directly downloading full or upgrade (for licensed users) versions of Acrobat 6, both Standard or Professional, for Windows and Macintosh OS X.
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.