What does four colour process (CMYK) mean?
Four colour process describes the printing process that is used today to print the full colour that you see in magazines, newspapers, brochures and labels. Basically a colour image is separated into the four primary colours: Cyan, Magenta, Yellow and Black (known as CMYK) by the use of filters and screens. The result is a colour separation of four images that when printed make up the full colour image.