Did you know that Acrobat 7 allows users to open Web links within either Acrobat (effectively capturing the Web page on-the-fly) or a Web browser like Internet Explorer or Firefox? What's more, users can open Web links in a flash with some nifty keyboard shortcuts.
In Acrobat, hold down the Shift key and click a link to open it automatically in your browser.
OR hold down the Ctrl key and click a link to open it as a PDF in Acrobat.
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.