If the users filling in the forms don't have Acrobat, I would suggest using
a digital signature field. The signature will become invalidated if the
fields are changed after it was signed, and you won't have to deal with
flattening the file.
If the users filling in the forms don't have Acrobat, I would suggest using
a digital signature field. The signature will become invalidated if the
fields are changed after it was signed, and you won't have to deal with
flattening the file.