Using passwords is a practical way to protect documents. With Power PDF, you can place password protection on the following items:
Envelopes containing a set of PDF files and optionally other types of file
Packages prepared by PDF Create containing a set of PDF files
Portfolios prepared by Power PDF containing PDF files and optionally other types of file.
PDF files in envelopes, packages and portfolios may have their own passwords.
The advantage of placing a password on an envelope or a portfolio is that it offers protection to non-PDF files that themselves cannot be protected by passwords.
Passwords cannot be applied to documents containing a digital signature.
There are two password types:
- Open Password
- Anyone with this password can open the document. If the document has no permissions password, the PDF, once opened, can be used freely. If it has a permissions password set, a person with only the Open password can view the set of permitted and prohibited actions but cannot modify them.
- Permissions Password
- Anyone with this password can open the document; view, modify or clear its permitted and prohibited actions; and change passwords or remove one or both passwords.
Power PDF has no particular requirements for passwords; a strong password contains at least six characters, is not easily guessed and has a mix of letters, numbers and symbols. Password use demands careful management, becaise without a valid password, a document cannot be opened.