Hi, esp. Hans, while finalizing the PDF for our latest book, I recognized a color problem: The general black color is rendered not 100% black in CMYK mode, but in all channels (converted RGB, I guess). With \definecolor[cmykblack][k=1] \setupcolors[textcolor=cmykblack] this is ok, but the color mode is knockout instead of overprint (as it would be usual for CMYK black). That means, black text on a photo is white in the other plates. If I define \definecolor[cmykblack][k=1,a=multiply,t=1] \setupcolors[textcolor=cmykblack] it’s ok in some places, but it messes up many unrelated places, e.g. most images then also use this transparency mode. \setupcolors[intent=overprint] has no effect, as far as could find (while we have a warning in the wiki, that you should use this only for grayscale works). What can I do? Hraban