Inserts a new page to current document being created.
The new page properties
1-based number of page.
AddPage will append the new page at the end of the document. To insert a page at a random place in the document, use InsertPage. Note that InsertPage is only supported if the was crated using the DocumentFormat.Ltd format.
This method can be called multiple times for each page to be added to the new document. To create a new document and on information on how to use the DocumentWriter class, Refer to LEADTOOLS Document Writers for more information.