Protecting Downloads

[Guest]

Hey guys,

 

I own a business that sells a product that right now is being downloaded through the OsC download module. Works great and all, but am curious about a way to protect my files after they are placed on the purchasers computer. Does anyone know of a way that would limit their distibution, but much more restricted than what Acrobat offers? The files are .pdf's or .doc, whichever. I would like the files to lack the ability of being copied, or even better, used on any computer other than the original purchasers. Is this possible?

 

Thanks for your help,

 

B.