ps2pdfのオプション

Ghostscript PDF

ps2pdf -dEPSCrop -dPDFA -sProcessColorModel#DeviceCMYK -dPDFSETTINGS#/prepress test.eps

EPSのサイズで作成

dEPSCrop

PDF/A-1Bで出力（PDF/X-1aはどうやんの？）

dPDFA

カラースペース？（CMYKとかRGBとか）

sProcessColorModel#DeviceCMYK

sProcessColorModel#DeviceGray
sProcessColorModel#DeviceCMYK
sProcessColorModel#DeviceRGB　（PDF/A及びPDF/Xの場合は出来ないっぽい）

PDFクオリティ？

dPDFSETTINGS#/prepress

/screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
/ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
/printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
/prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.
/default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file.