Glossary

Like any industry, ours uses terms that may be unfamiliar to you. This will help you make sense of these terms.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

page description language
(PDL) The format used to describe the position of elements within a page elements as well as the page's relative position within a document. The output device then translates the format into a reproduction of the original image. Other Term: page descriptor. See also: imagesetter; PostScript; raster image processors; vectors.
page descriptor
See page description language.
page makeup
1. Using a computer application to create a single or multi-page document, including the positioning of type, line art, photographs, etc. The document is then output to an imaging device.
2. Manually pasting the elements of a single or multi-page document to a board. Referred to as camera ready, this paste-up board is then photographed to create film negatives or positives. See also: pagination.
pagination
1. The page makeup process for a multiple page document.
2. The process of numbering or creating individual pages. See also: page makeup.
pasteup
Manually pasting the type, photographs, line art, and other elements of an image to a board. Referred to as camera ready, this paste-up board is then photographed to create film negatives or positives. Alternative terms: mechanical; photomechanical.
photomechanical
See pasteup.
phototypesetter
A device that outputs exposed photosensitive film or other materials. The phototypesetter uses electronic signals from a typesetting computer to expose the photosensitive material. Also a reference to the person operating the device. See also: typesetter.
platemaking
Creating a printing plate that is completely prepared for use on the press. The process starts with a blank plate, which is then exposed to the image film, developed, and sensitized (if needed).
point size
The height of a typeface. A point equals 0.0138 inches. Other Term: type size. See unit set.
PostScript
A tradename of Adobe Systems, Inc. for its page description language. This language translates a digital image file from a word processing application, for example, into a language a compatible printer or other device can use to create its output. See also: imagesetter; page description language; raster; raster image processor; vectors.
process colors
The three subtractive primary colors (cyan, magenta, and yellow) plus black. a.k.a., CMYK
pull sheets
Random sheets removed from the stack of output and used for quality control.
pulp
The fibrous cellulose produced by mechanical or chemical means that is used for making paper.