GhostScript1
GhostScript		 MacOSX1
MacOS X Image Framework		 Helios1
Helios
GhostScript2
GhostScript		 MacOSX2
MacOS X Image Framework		 Helios2
Helios

Helios-Konvertierung per layout -oForceRasterLayout=TRUE -oRasterImageType=JPEG -oRasterImageSuffix=.jpg -o RenderingQuality=2 -r 72 -o PrintColor=RGB -o Attributes="Baseline=TRUE","DctMethod=1","Quality=80"

Original-PDF hier