Making black text overprint

Text —especially fine text or text set at a small point size— on colored backgrounds is extremely difficult to print in register. The slightest misregistration can become notice­able as small gaps can appear between the text and the underlying colored elements.

To avoid this problem, you can specify that all black text should print on top of any colored backgrounds. This technique is known as overprinting. Overprinting preserves the legibility of the text.

Figure 1. Overprinting black text compensates for misregistration.

You can specify overprinting only for 100 % black text because printing text of any color other than solid black over any other colored background might cause the overlapping inks to blend, which could result in unwanted color mixing.

The simple overprint and knockout theory

The devil in the overprint and knockout detail

Common pitfalls of overprint behavior