Dear Maruti
do we talk about GLM + ??? I am not sure what your are looking for. Regarding "classic" WWI reports (as MSDS/SDS) a conversion on the fly can be doen to PDF; but this is done in most cases only for dispatch reasons (by email).
I found similar threads: e.g. SAP GLM PDF generation
Please procide more details so that somebody might be able to help you
C.B.