I made a form and then distributed amongst co-workers. they submit the form via email link as fdf - then I import the fdf to a blank form - then I sign the form - then I forward to my boss for his signature - it wont let him because I already signed it. Not sure what I'm missing here... lots of signature fields so I don't get it.
Is your boss using Acrobat or Reader? If Reader, you should Reader-enable the document before signing.