New in PDF 2.0, black point compensation (BPC) is a colour management technique allowing for the alignment of the darkest color in the data’s color space with the darkest colour supported by the display device (screen or print). This Application Note explains BPC in order to promote the feature’s adoption.
Black point compensation is already widely used in production printing, especially in situations where the combination of the substrate, colourants (e.g. inks) and printing process cannot achieve a very high density for blacks. Enabling BPC will often increase the perceived quality of graphical elements such as natural photographic images because they may achieve a higher contrast and more ‘punch’.