...very good question! I hope that photoshop (CS5.5) will display the results on screen but right now I have no idea if it can do this correctly? Beside of this we could make test prints on a HP Indigo some where but as far as I know there are no HP Indigo CMYK+N ICCprofiles available...? Michael Schulz Am 22.03.13 12:07 schrieb "Kai-Uwe Behrmann" unter <ku.b@xxxxxx>: >Am 22.03.2013 11:59, schrieb Graeme Gill: >> Michael Schulz wrote: >> >>> is it possible to convert an RGB tif image (i.e. eciRGB_v2.icc) to a >>>CMYK+N >>> color space (i.e. CMYK+red,green,blue) I tried this with cctif and >>>got a >>> converted image in CIElab color space. >> >> Hi, yes this will work. But you need a CMYK+N ICCV2 profile use as the >>output >> profile. > >Which application shall display the resulting CMYK+N images. Or do you >like to proof them on screen only? > >kind regards >Kai-Uwe >