Secure Form So It Can't Be Copied or Code Viewed

First off thank you to those who answered my last question about the checkboxes.
I'm being pretty generic here, but I did complete my form that I was trying to,
it came out great. Now I wanted to add some bells and whistles. One thing we are
concerned with is if this form gets out, competitors of ours could potentially
take it, change a graphic and make it their own. What kind of protection can I
implement to, I don't know, encrypt the code, password protect the form etc.

I do know about the password protection, but there are password pdf breakers,
I'm looking for something a little more harder to overcome.

You can password protect the form but that has no value. There's no
technical measures you can take. You should include a copyright notice
(even though unnecessary in legal terms) in the file and in
significant pieces of code, and store a reference copy e.g. with your
lawyer.