You may remember the part in the film of Forrest Gump where the affable protagonist reveals that he had invested early in what he thought was a fruit company -- Apple -- but what of the real-life technical history of that entity's well-known operating system? It's now being made available for download in PDF form, courtesy of Mac OS X Internals: A Systems Approach author Amit Singh.
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.