A method implemented in a print shop management system that includes a data processing apparatus having a non-transitory memory for storing a computer software program and a processor for executing the software program, wherein the program includes a program code configured to cause the data processing apparatus to execute a process for customizing color or black and white (B/W) printing of a document containing color and B/W pages, which process includes the steps of analyzing the document to obtain its original color page data which specifies color pages of the document that are originally set to be printed in color, providing a user interface for editing the color page data of the document by allowing input of individual page numbers designating which color pages of the document will indeed be printed in color, and printing the document according to the edited color page data by printing color pages of the document in color if they are also designated to be printed in color, and printing color pages of the document in black and white if they are not designated to be printed in color.