PDF Security... yet another inquiry

I'm not so much concerned with the content of the form I'm creating but with the underlying javascript used in creating the dynamic functionality of this product.
I've been researching security of PDF's, and I'm a bit worried. PDF Locker, Elcomsoft PDF Recovery Software, code obfuscators.... the list of possibilities goes on and on.
It seems that my intellectual property is certainly going to be easy-pickin's for anyone with a modicum of software knowledge and more than passive curiosity.
It also seems that top level security of a PDF document is easily broken. But what about the next level, the PDF infrastructure? Is that secure?
Graham
PS. Please don't sugar coat it... if it's relatively easy to access, I'd like to know.

There are three ways to encrypt (secure) PDF documents and forms.  Here is a high level view of the differences...
1) Password based encryption (requires Acrobat, OR Designer OR LiveCycle ES to be applied to the document)
Not very secure, there are tools available on the internet that can crack password encryption
“Global” permissions, there is no way to assign different permission to different users
2) Encrypt with Certificates (requires Acrobat, OR LiveCycle ES to be applied to the document)
Encrypt for individual users
No support for “Groups”
Access to each user’s public key that you will be encrypting the document for is required
Protection is not dynamic
If permission changes are required the source must be re-encrypted
No way to revoke documents
Need a PKI, or some source of Digital Certificates
Certificates must have “Encryption” Key Usage2)
3)  LiveCycle Rights Management ES (requires Acrobat, AND LiveCycle Rights Management ES to be applied to the document)
Encrypt for individual users and\or Groups
Protection is dynamic (controlled from server)
If permission changes are required the source need not  be re-encrypted, thee changes can be made to the policy on the server
Protected documents can be revoked
Regards
Steve

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