Created RSVP form in Acrobat Pro 9. End users are able to fill form as desired but once they hit the "Submit Form" button they get a message that says "This operation in not permitted." Checked my permissions and they are set correctly as far as I can tell. I am attaching both screen capture of what end user sees. Can't figure out how to attached the original pdf, but would email wherever if you are willing to take a look.