if you are so apathetic to piracy and feel fine sharing and not expecting anything in return, then why not release the .pdo? it seems like you are taking measures against something that you really don't have to. If people wanted to use less pages or if they wanted to scale the model up or down then they could do, but if someone is going to pass it off as their own or sell it then they are as likely to do it with the pdf as the pdo anyway..