The invention relates to a system for printing on colored background other than black or white, the system comprising: an apparatus for receiving input data respecting an image printable on the colored background, the image constituting one of a color and a grayscale containing transparency information, the apparatus processing the input data and outputting white underbase information including printing ink separation; a dual-acting device capable of acting in a first aspect as a plate making or film generating means in respect of offline printing, and in a second aspect acting as a print controller in respect of online printing; and a printing device selected from a group consisting of offset printing device, screen printing device and Hybrid printing device when offline printing being adapted, and/or, selected from a group comprising inkjet printer, laser printer and toner-based printer when online printing being resorted.