I'm trying to create an application form that I can email to clients and get them to fill in, save and send back. I'm creating in Adobe Acrobat Pro X, saving as Reader Extended PDF, to enable more tools. Save and re-open the file myself and it works perfectly. However send to another user opening it on the free (fully up to date) Adobe Reader and this message appears:
"This document enabled extended features in Adobe Reader. The document has been changed since it was created and use of extended features is no longer available. Please contact the author for the original version of this document."
I have racked my brains and tried so many different things but nothing seems to work.
Any help would be amazing!