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Deboss To print an image on paper by pressing the front surface resulting in a sunken appearance Densitometer An instrument used to measure the density of ink and determine ink coverage Density Degree of lightness or darkness of a colour Diazo A light-sensitive chemical used as coating on paper, film, or press plates Die Metal plate cut used for cutting, stamping or embossing images Die cutting A process of putting a shape or design on paper using metal dies Direct Imaging A technology that directly transfers an image to a press plates from a digital file, eliminating the use of film plates Direct Imaging Press An offset press where the plate is imaged directly on the press with laser Dot Single identifiable element of an image; also referred to as a “pixel” Dot gain or spread An occurrence when dots print larger than they were on the plate or film Dots Per Inch (DPI) A measurement of resolution of a screen image or printed image defined by the number of dots that fit horizontally and vertically into one inch; The higher the DPI, the sharper the image Double burn Using multiple negatives to burn one image onto a print Draw-down A thin coating or smear of ink on paper used to determine and approve colours before printing Drop-out Parts of artwork that are not reproduced Dummy A mock layout of a copy used to show how a finished product should appear Duotone A halftone image made up of two colours – black and white Duplexing The ability of a press to print on both sides of a sheet without turning the sheet over |
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