Document Info for the document like Author, Title and Subject.
public class DocumentInfo : Object
The person who authored this document.
The date this PDF was originally created.
The application that created this document before it was converted to PDF (this is your application).
A collection of custom properties.
Keywords of this document.
The date this PDF was last modified.
The component or application that created this document (this component after it is written).
Subject of this document.
Title of this document.