Missing code in "Offline Interactive Forms Using ABAP" SDN document?

I am trying to build a sample offline form scenario using the code published in the SDN document "Offline Interactive Forms Using ABAP" written by Vani Krishnamoorthy. Everything works perfectly up to the point where we instantiate the PDF Object to extract the data from the form. Then there seems to be some code missing just before we call the method SET_DOCUMENT. We are supposed to export the parameter pdfdata = pdf_data , but I cannot find where pdf_data variable is declared or assigned. Also, an ENDTRY statement seems to be missing.

Has anyone had success with Vani's offline scenario, and if so, do you know what code is missing, if any?

Thanks in advance for any help you can offer.