Creating color traps
With CMYK images, you can adjust the color trap. A trap is an overlap that prevents tiny gaps from appearing in the printed image, due to a slight misregistration on press. In most cases, your print shop will determine if trapping is needed and tell you what values to enter in the Trap dialog box. ![]() Misregistration with no trap, and misregistration with trap Trapping is intended to correct the misalignment of solid colors. In general, you don't need traps for continuous-tone images such as photographs. Excessive trapping may produce an outline effect. These problems may not be visible on-screen and might show up only in print. Adobe Photoshop uses standard rules for trapping: To create trap:
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