When I render, it is in RGB and the texture also has to be since blender does not know what CMYK is but printing guy takes the color picker and says that the CMYK is not the same as in the vector PDF lable file also not mentioning that the color saturation changes based on the light and shadows.
How did you get as close to the CMYK settings in 3D when rendering in RGB . How to make print projects when you are forced to meet their color settings? Would you try to explain to them that 3D just works in RGB and the only thing I can do for them is to change the mode in Photoshop the DTP guys have tried but could not get to the settings know they say I have to do it.