Working With PdfDocumentBuilder Class
The PdfDocumentBuilder class is the main class we used to create all kind of pdf document. It has several ???Factory properties which are for creating other pdf elements, such as brush, font.
The general step of create pdf document is:
1. Create a PdfDocumentBuilder object
2. Create a IPdfDocument object through the builder object
3. Create a IPdfPage object through IPdfDocument object
4. Create other objects required by IPdfPage.Draw??? method by using ???Factory attached to PdfDocumentBuilder object
5. Paint page with IPdfPage.Draw??? methods