Printing color calibration bars and densitometer scales

Color calibration bars are color scales that print on each sheet of a color separation. Calibration bars are required to ensure accurate color reproduction (see "Creating color separations" on page 729). To see calibration bars, the page size of the print job must be larger than the page size of the work you are printing.

A densitometer scale is a series of gray boxes ranging from light to dark. These boxes are required to test the density of halftone images (for more information see "Working with bitmaps and halftone screens" on page 726.) You can position the densitometer scale anywhere on the page. You can also customize the levels of gray that appear in each of the seven squares on the densitometer scale.

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