PdfSecurityOptionsOwnerPassword Property

The password required to change permissions of the PDF document generated by the HTML to PDF converter, like printing or editing. If the OwnerPassword property is an empty string and the UserPassword is not empty, the OwnerPassword will be automatically assigned with the value from UserPassword and when the PDF document is opened in the viewer using the user password (which is also the owner password) all the operations like printing, copying, etc will be allowed.

public string OwnerPassword { get; set; }