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Consists of a series of thin and thick black lines that when placed in defined patterns represent a numeric or alphabetic character. Various different symbologies identify the defined patterns. Barcodes can be one dimensional -- like the ones found on retail packages or two dimensional (known as 2D). 2D barcodes, which consist of a matrix of black and white blocks can contain large amounts of information. The most popular is PDF-417, developed by Symbol Technologies.

The finishing department of a print shop or firm specializing in finishing printed products.

An element that extends to the edge of the page. To print a bleed, the publication is printed on oversized paper which is trimmed.

An image pressed into a sheet without ink or foil.