From the same authors of the A-PDF Password Security program, you now have a very interesting program: A-PDF Password Security Service.
With A-PDF Password Security Service you can monitor folders containing PDF files to detect if there is any change in the security password of each of the documents. When the password of any PDF is modified, you will be notified. In this way, you will be aware of all accesses, editions or modifications that occur.
It also allows you to set restrictions (such as, for example, that the PDF can be opened and read, but not printed). For the correct functioning of A-PDF Password Security Service it is not necessary that you have Adobe Acrobat installed on your computer.
You can free download A-PDF Password Security Service 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.