Reference

ps2pdf13(1) on Linux

The text 267d83bf03c4, as Debian 6.0 (Squeeze) shipped it.

Convert PostScript to PDF using ghostscript ps2pdf12 - Convert PostScript to PDF 1.2 (Acrobat 3-and-later compatible) using ghostscript ps2pdf13 - Convert PostScript to PDF 1.3 (Acrobat 4-and-later compatible) using ghostscript ps2pdf14 - Convert PostScript to PDF 1.4 (Acrobat 5-and-later compatible) using ghostscript

ps2pdf13(1) on Linux now