[pdftex] CMYK images in pdftex.

[Hans Hagen]

At 23:29 20/02/2004, Martin Schröder wrote:
>On 2004-02-20 16:33:59 -0500, John Culleton wrote:
> > nteresting. I took a picture an scned it onto a
> > file called dogs.pnm. Then I converted that to tiff
> > with the statement
> > pnmtotiff -none dogs.pnm>dogs.tiff
> > and then ran
> > convert dogs.tiff dogs.pdf
> >
> > All of this was successful (after I recompiled and
> > reinstalled the netpbm package).  I then viewed the
> > resulting dogs.pdf file in three different pdf viewers
> > on my Linux desktop. The colors were quite different!
>
>Which version of gs are you using?

when converting en cmyk eps to pdf using gs, don't forget:

   -dProcessColorModel=/DeviceCMYK

otherwise gs will (by default) convert things to rgb

btw, cmyk files are bigger than rgb files, and you can also look into the 
file for color space cues, so it;s often easy to tell what happened

Hans