What type of security should I use?

[kirstieh27346388]

Any help on the below would be much appreciated.. I can't seem to get a clear solution.

I create editable PDFs (wedding invitations). The customer downloads the PDF and adds their own wording into the form text field set-up for them. They do this in Adobe Reader (free version). Our forms are obviously set up in the Pro version.

I don't want to use password security as this causes a lot of issues when the customer goes to print (especially when uploading to an online printer - it just doesn't let them). Basically, the only security I really want is to restrict anyone from altering or changing the form itself in the Pro version if they have this version.

Any Ideas?

[Test Screen Name]

There is nothing you can do to protect yourself from a motivated person for more than a few minutes. Best to avoid inconveniencing your paying customers for the sake of this.