.PHP to .PDF form that will be emailed to a specific address

.PHP to .PDF form that can be emailed The forms are aleardy in place but is not working properly. When the form arrives to the email. It displays a blank .PDF page or sometimes an error: Acrobat could not open '[login to view URL]' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).