Glossary of Terms

Like any industry, ours uses a variety of terms. If you want to find out what they mean, you are in the right place! Simply click on a letter to see its list of terms. If the term you are looking for isn't listed in our glossary feel free to contact us so that we may help you as well as add it to our list.

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


1. Unaltered phototypesetter output, usually single columns of type on photographic paper, serving as preliminary proofs. 2. Final image or typeset copy output directly to film or photographic paper 3. Initially, a long, shallow tray for storing and proofing handset type

Galley Proof

A proof of text copy before it is pasted into position for printing.

Galley Slave

Old term for compositor.


Group of frames or impositions in the same forme of different jobs arranged and positioned to be printed together as a single impression. Also known as gang printing, gang run, or gang up.


The bundling of two or more different printing projects on the same sheet of paper.


A four page insert to a book that is larger than the existing page dimensions, having a fold at the outer edge that serves as a hinge, allowing two sheets to fold out from the center to the edge. Also known as a foldout.


To assemble or collect signatures into single copies of complete books for binding.


Assembling all the signatures in order.

General Requirements for Applications in Commercial offset Lithography

General guidelines and recommendations that can be used as a reference source across the US print industry for quality color printing.


Also known as gloss ghosting. A condition occurring during sheetfed printing when inks containing drying oils are used in production. Vapors from drying ink on one side of a press sheet interact chemically with the dry ink densities printed on a sheet in contact or on the reverse side of the same sheet creating unintended faint images.


Giga is an SI prefix in the SI system of units denoting 109 or 1 000 000 000.
Confirmed in 1960, it comes from the Greek γίγας, meaning giant.
Abbreviation: G


1,024 megabytes or one billion bytes of computer data


Sticking on gold leaf to edges of books with a liquid agent and made permanent with burnishing tools.


An opaque smooth paper used primarily for candy wrappers and dust jackets. Formerly used in book production for the separation of text pages from graphic pages.


Paper with a surface sheen or polish applied during or after manufacture by calendering, drying, plating, or drying


The "shinyness" of a material as measured by the amount of light reflected from its surface. Alternative term: specular gloss.

Gloss Ink

Quick drying oil based inks with low penetration qualities, used on coated stock.


A process which a moistenable adhesive is applied to products like envelopes or stamps.


A carved as opposed to scripted typeface.


An orange colored paper with gridlines, used to assemble materials for exposure for platemaking.

Graduated Screen

An area of image where halftone dots range continuously from one density to another.


Direction of fibers in a sheet of paper governing paper properties such as increased size changes with relative humidity, across the grain, and better folding properties along the grain.

Grain Direction

1. The alignment of pulp fibers in the direction of web travel during the production of paper. 2. "Grain-long" is the grain direction paralleling the longer dimension of the sheet. "grain-short" paper has fibers paralleling the short dimension of the sheet. 3. In the production of bound materials, the grain direction of all papers used must run parallel to the backbone to prevent cracking and insure a durable spline

Grained Paper

A paper embossed to resemble various textures, such as leather, alligator, wood, etc.


See grain direction.


See grain direction.

Graphics Interchange Format

A .gif is a bitmap image format for pictures and animations that use 256 (or fewer) distinct colors. .gifs are compressed files, and employed specifically to reduce the amount of time it takes to transfer them over a network connection. The format was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web.
File Extensions: gif
See Also: (JPEG) Joint Photographic Experts Group, (PNG) Portable Network Graphics, (TIFF) Tagged Image File Format

Graphics Software

In computer graphics, graphics software is a program or collection of programs that enable a person to manipulate visual images on a computer.
See Also: Adobe Photoshop


A printing method that uses ink-filled depressions in a cylinder to deposit ink on a substrate, forming an image. The small depressions, known as "cells", are etched into the cylinder to form the image. Ink is flooded onto the cylinder and then removed by a blade scraping the cylinder surface. Only the ink in the etched depressions remains and is transferred to the substrate on contact.

Gray Scale

1. Graduated neutral tones used in printing to reflect color differentiation. 2. A film strip used in combination with original photography to check focus, provide print contrast, time development, measure density ranges, balance color, etc. Also, gray wedge; neutral wedge, or step tablet or wedge.

Gray Wedge

See gray scale.


Green is one of the additive primary colors, the complement of magenta. Many artists, however, continue to use a traditional color theory in which the complement of green is considered to be red. Green light has a wavelength of roughly 520-570 nm.
See Also: Additive Color Process, Primary Colors, RGB Color Model


A series of metal fingers that hold each sheet of paper as it passes through the various stages of the printing process.

Gripper Edge

The grippers of the printing press move the paper through the press by holding onto the leading edge of the sheet; this edge is the gripper edge.


Low cost papers such as newsprint made by the mechanical pulping process as opposed to chemical pulping and refining.

Groundwood Free

See: wood free.


The application of gum arabic to the non printing areas of a plate.


Space between pages in the printing frame of a book, or inside margin towards the back or binding edge. The blank space or margin between the type page and the binding of a book.

Gutter Margin

The space between the text matter and fold edge next to it. Alternative terms: back margin, binding margin.

Internet Payments

Visa Logo  Mastercard Logo

Footer Divider

© 1999 - 2020  •  Keiger Graphic Communications  •  3735 Kimwell Drive, Winston-Salem, NC 27103
Contact our Webmaster if you have any questions or comments concerning this site.