Greetings, I am looking for a way to ensure that our automatically generated pdf production reports are secure from editing. We are pharmaceutical manufacturing company and this is a matter of regulatory compliance. Reports are automatically printed to pdf at the end of production run. Ideally, I would like to not only protect them from editing but generate an audit trail or alternatively, make altered file unreadable/unprintable. Please let me know if this is something that you can help us with. Thanks!