Using Acrobat, PDF has been established as a popular and user-friendly medium for collaborative workflows. Not only can you add sticky notes or highlight text, you can even draw polygonal or freehand annotations. This tip explains how.
In order to add drawing markups such as rectangles, lines and polygons to your PDF documents in Acrobat:
Open the document to be annotated in Acrobat.
Select 'Tools > Drawing Markups'.
Choose the appropriate tool from the list.
Use your mouse to draw the desired annotation directly on page.
Like most PDF annotations, you can also double-click the annotation itself to add some descriptive text for an even more flexible workflow. Add some text to the note if required, and you're done!
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.