Annotating PDF

Major advantage of PDF format in Education:

• easily add grading comments in Acrobat
• make colored sticky notes of various shapes
• associated with author for multiple reviewers
• expand them or fold them up
• text-edits replace/insert/strikeout/highlight/underline
  (can now even be merged into source .doc )
• use comments pane for quick review
• export all annotations to separate PDF
• place clip-art stamps e.g. for approval