The reference documentation provides the following information:
Runtime API of the PDF Document Object
You use this runtime API in the ABAP Workbench to provide your application with form processing functions that extend beyond the generation and output of pure output forms (including interactive offline forms for sending by e-mail).
Using Methods - Example Scenarios
This selection of example scenarios shows you how to use the methods of the PDF Document object in the correct order.
This section lists all example programs that you can use for tests or as templates for your own applications.