[Openicc] Ghostscript PDF/X-3

[Kai-Uwe Behrmann]

The new -dUsePDFX3Profile Ghostscript option [1] implies to pick a
OutputIntent profile as destination profile only in case that option is 
specified. However for the last two sentences of the -dUsePDFX3Profile 
description in Use.html, I was not quite sure to had translated properly
to my thinking language ;-)

Regardless the rules for Device colour spaces, I would like to understand 
if the -dUsePDFX3Profile option alone will already override any fallback
-sOutputICCProfile option? So Ghostscript will take over the PDF expert 
responsibility to meet the PDF/X-3 standard, which would be greatly 
appreciated.

Between the behaviour, to use the OutputIntent as a proofing profile in 
case it's colour space does not match the intented output device colour 
space, is a interesting feature for on screen displaying.

kind regards
Kai-Uwe

[1] http://git.ghostscript.com/?p=ghostpdl.git;a=blob_plain;f=gs/doc/Use.htm;h=3bd2519161e8271aaa630edfd19b1e033c350c48;hb=82d1d263a13ccfe64e78cd0e6f1cf1a275adcb9c