Hi Ricky,
Please check the below links to convert to pdf.
http://help.sap.com/erp2005_ehp_04/helpdata/en/27/67443cc0063415e10000000a11405a/content.htm
http://wiki.sdn.sap.com/wiki/display/Snippets/Convert+Smartform+to+PDF+format
Hope this might help you.
Regards,
Anil.