PDF document in Spool

Hello all,

I have a PDF document in spool. I want to read this and archive it. I tried using CONVERT_ABAPSPOOLJOB_2_PDF but in this case the spool already contains a PDF document and I am assuming this function only helps if its some kind of ABAP report or something (to convert to PDF). In this particular case PU19 is run for generating a PDF document. Can we still use this function? or is there any other function available?

thanks