SAP have created a standard program RSTXPDFT4 to convert your Sapscripts spools into a PDF format.
Specify the spool number and you will be able to download the sapscripts spool into your local harddisk.
It look exactly like what you see during a spool display.
Please note that it is not restricted to sapsciprts spool only. Any reports in the spool can be converted using the program 'RSTXPDFT4'