http://www.adobe.com/products/reader.html
"IMPROVED Comment using the PDF annotator
Reader XI comes with a full set of commenting tools. So you can add sticky notes, highlight text, and use lines, shapes, stamps, and a typewriter tool to place comments anywhere on your PDF document."
"IMPROVED Fill out forms
Say goodbye to paper forms. Type your responses right on the PDF form, or click through and fill in the form fields. Then save and submit. That's really all there is to it."
"IMPROVED Sign files with e-signatures
No need to print documents before you sign them. With Reader XI, it’s simple to add your electronic signature to PDFs — and just as easy to get them signed by others."
"Do more with online services
One click in Adobe Reader XI takes you to Adobe online services where you can create PDFs, turn PDFs into Office files, or build fillable PDF forms in minutes."
