Defines owner and user passwords for the document.
Setting the passwords makes the document contents encrypted.
Parameters
- owner_password
The password of the owner, which can change permissions of the
document. Empty password is not accepted. Owner's password cannot be
the same as the user's password.
- user_password
The password of the user. Can be empty.
Return Values
Returns TRUE
on success.
Errors/Exceptions
Throws HaruException
on error.