Runtime API of the PDF Document Object 
Adobe Document Services (ADS) provide a range of functions for creating and editing PDF forms and documents. The PDF Document object includes an application programming interface (API) that you can use to implement ADS functions in the familiar ABAP Workbench environment.
IF_FP_PDF_OBJECT
CL_FP_PDF_OBJECT
Factory class for generating the PDF Document object instance: CL_FP
These interfaces are used mainly for the definition of constants:
IF_FP_PDF_INITIALVIEW_LAYOUT
IF_FP_PDF_INITIALVIEW_MAGNIF
IF_FP_PDF_INITIALVIEW_SHOW
IF_FP_PDF_SECURITY_PERMISSIONS
IF_FP_PDF_SECURITY_STATUS
IF_FP_PDF_USAGE_RIGHTS