Cropping and sizing sometimes overlap. D Density A measure of the blackening of photographic images. Digitize To convert graphics or photographs to computer files with a scanner. Dot Gain Inherent effect in web printing in which halftones and color separations print darker than the original. The number of dots of ink generated by the half-tone process contained in an inch of picture.
Digital images measure pixels per inch or centimeter.
A layout showing how various elements will be arranged in a publication prior to paste-up. In typesetting, a fixed space equal to the square of the type size being used. The coating of light-sensitive material on a piece of film. En A fixed space equal to one-half the width of an em. A file format used to transfer PostScript image information from one program to another.