The Adobe Reader 7 Revealed

Working Effectively with Acrobat PDF Files

A guide to effectively using Adobe Reader provides information on adding comments and markups to PDF files, opening file attachments, using Picture Tasks to create slide shows, and reviewing documents through email.

Press the Tab key to move from one field to another. If the PDF author set the
proper tab order, the cursor jumps to the next logical field when you press the
Tab key. If the cursor jumps around the page when you press Tab, use the Hand
tool ...