which ghostscript paramters do nconvert use for pdf->jpg?

[daytrader]

my problem is that i use an very old nconvert (4.51) on an damn small linux system - there is no newer package for this distr.

i want to convert an pdf to jpg - but the resulting colors are wrong

with ghostscript (using the switch -dUseCIEColor) we get an proper result but the conversion is very slow

maybe nconvert passes extra switches to ghostscipt? - what are the default ghostscript switches which nvonvert uses?

regards daytrader

[xnview]

maybe nconvert passes extra switches to ghostscipt? - what are the default ghostscript switches which nvonvert uses?

I don't use any special param

[daytrader]

thank you for your fast reply

but with the command:

gs -dSAFER -dBATCH -dNOPAUSE -dUseCIEColor -sDEVICE=jpeg -sOutputFile=test.pdf

gs is much slower than nvonvert

do you have an explanation for this?

[xnview]

gs is much slower than nvonvert
do you have an explanation for this?

I use the width/height output, perhaps it's that

[daytrader]

it´s me again

do you use -gnumber1xnumber2 ?

from the ghostscript documentation:

-gnumber1xnumber2
Equivalent to -dDEVICEWIDTH=number1 and -dDEVICEHEIGHT=number2, specifying the device width and height in pixels for the benefit of devices such as X11 windows and VESA displays that require (or allow) you to specify width and height. Note that this causes documents of other sizes to be clipped, not scaled: see -dFIXEDMEDIA below.

but with this parameter the output is clipped not scaled

[xnview]

do you use -gnumber1xnumber2 ?

Yes