Where can I get more help using digitally signed and certified PDF files?
Additional help information is available from the Adobe Acrobat (or Reader) Help file which is part of the Adobe software. To access additional help on validating digital signatures, open Acrobat or Reader, click on “Help,” click on “Adobe Acrobat (or Reader) Help,” click on “Search,” and use the following search term: “Digitally Signed Adobe PDF Documents.