Liquid applied to a printed sheet and then bonded and cured with ultraviolet light.

Term to indicate multiple copies of one image printed in one impression on a single sheet. “Two up” means printing the identical piece twice on each sheet.

The size of the printed material in its finished stage.

To print one ink over another or to print a coating, such as varnish, over an ink. The first liquid traps the second liquid.

Any surface or material on which printing is done.

Technique of slightly enlarging the size of an image to accomplish a hairline trap with another mage. Also called a fatty. Also refers to two pages that face each other and are designed as one visual unit.

One ink or varnish applied to portions of a sheet as compared to a flood.

Instrument used to measure the index of refraction of color.

The ability to generate a file from the customer’s ripped page that is viewable on a monitor. This allows operators to check the file against laser proofs for content, type flow and correct trapping. It might also mean a PDF file sent to the customer to view at their site before any materials are used.

Printed sheet that is folded at least once, possibly many times, to become part of a book or publication.