If an individual might be using spot colours, especially if they be set to overprint or ko? Change this by selecting the product or service and utilizing the Trap Information palette in Quark along with the Attributes palette in InDesign. Even in are not using spot colours could quite possibly want black type to overprint on the tinted or knocked back background. If this is the then in case it is about to overprint using a similar palettes. After the diagnosis of the number of space to be abl...