Definition: PSF

(Print Services Facility) Software from IBM that performs the printer rasterization for IBM's AFP and other page description languages. PSF products are available for IBM mainframes, AS/400 and RS/6000 series and output the IPDS format for IBM printers. Various versions also input and output PostScript and PCL (LaserJet) with PSF/AIX for the RS/6000 and SP2 mainframes being the most flexible and providing the most conversion capability.