Am 08.03.2012 18:07, schrieb John A. Sullivan III:
<snip> I do not know much about ghostscript but do we know what this change does and what the real problem was? Was it the PDFSETTINGS=/printer or the DoNumCopies? What does the change really do?
A half hour of Internet research didn't turn up much: -dPDFSETTINGS=/screen (screen-view-only quality, 72 dpi images) -dPDFSETTINGS=/ebook (low quality, 150 dpi images) -dPDFSETTINGS=/printer (high quality, 300 dpi images) -dPDFSETTINGS=/prepress (high quality, color preserving, 300 dpi imgs) -dPDFSETTINGS=/default (almost identical to /screen)
I do not know what color preserving means. <snip>
It's been a while since I worked in printing support and had to deal with PostScript/PDF/ghostscript stuff, but I'd wager a guess that /prepress is for professional printing, and "color preserving" in that context probably means that ghostscript should not attempt to apply a color profile when processing the file, as professional printing equipment usually has its own methods of color calibration.
Does that sound like it makes sense? ;-)
-Stefan