Policy Server appeared with the release of Acrobat 7 earlier this year. It builds substantially on the encryption and password security of past editions of Acrobat and provides control over how Acrobat PDF format documents are accessed.
Configuring the security settings on Windows servers, desktops and notebooks is an overly complex chore. Ensuring that the users do not reset any of the settings just adds to the headache. Policy Commander automates this task using predetermined policies.
In the Unix world, anyone who knows the root password has access to the root account. This gives them complete control, as there is no way to delegate specific privileges. The systems admin has to decide to control everything, or allow other users root access to perform specific tasks allocated to them. One way leads to overwork, the other to security compromise.