Like Base SAS, 
 SAS/GRAPH uses ODS destination
                  statements (

, 

) to control where the output goes and how it looks.
                  While ODS statements are not required in every 
                  SAS/GRAPH program,  they are necessary if you
                  want to generate graphs for destinations other than the default HTML
                  destination. Some other destinations include LISTING, RTF, and PDF. 
For more information about ODS destinations, see Understanding ODS Destinations in SAS Output Delivery System: User's Guide in  SAS Output Delivery System: User's Guide 
               As shown in Typical SAS/GRAPH Program, the ODS destination
                        statement is used at the beginning and end of the program to modify
                        the default destination. The beginning statement
                  modifies the default path and filename of the output file as well
                  as the default style. The end statement sets the HTML style back to
                  its default of HTMLBlue. The ODS destination statement can also be
                  used to open a different destination. If you do choose to use a destination
                  other than the default and need to use the ODS destination statement,
                  you should always open the destination before calling the procedure.
                  Opening a non-default destination results in output being sent both
                  to HTML by default as well as to the additional specified destination.
                  Conserve system resources by using the ODS destination statement at
                  the end of the SAS program to close a destination that was opened
                  in that program.