Useful printing terminology
Paper made from pulp containing little or no acid, so it resists age deterioration. Also called alkaline paper, archival paper, neutral pH paper, permanent paper and thesis paper.
All original copy, including type, photos and illustrations, intended for printing. Also called art.
Printing that extends to the edge of a sheet or page after trimming
Thickness of paper relative to its basic weight.
Abbreviation for cyan, magenta, yellow and key (black), the four process colours.
Paper with a coating of clay and other substances that improves reflectivity and ink holdout. Mills produce coated paper in the four major categories: cast, gloss, dull and matte.
Mostly in the book arena, specific marks on the back of signatures indicating exact position in the collating stage.
Unwanted colour affecting an entire image or portion of an image.
To adjust the relationship among the process colors to achieve desirable colors.
Proof of colour separations in position with graphics and type. Also called final proof, imposition proof and stripping proof.
Lines near the edges of an image indicating portions to be reproduced. Also called cut marks and tic marks.
Paper sizes used with office machines and small presses.
Device for cutting, scoring, stamping, embossing and debossing.
To cut irregular shapes in paper or paperboard using a die.
Page proofs produced through electronic memory transferred onto paper via laser or ink-jet.
Measure of resolution of input devices such as scanners, display devices such as monitors, and output devices such as laser printers, imagesetters and monitors. Abbreviated DPI. Also called dot pitch.
Simulation of the final product. Also called mockup.
Black-and-white photograph reproduced using two halftone negatives, each shot to emphasize different tonal values in the original.
To press an image into paper so it lies above the surface. Also called cameo and tool.
Encapsulated Post Script, a known file format usually used to transfer post script information from one programme to another.
To foil stamp and emboss an image. Also called heat stamp.
Size, style, shape, layout or organisation of a layout or printed product.
Four-colour Process Printing
Technique of printing that uses black, magenta, cyan and yellow to simulate full-colour images. Also called colour process printing, full colour printing and process printing.
Shiny, reflective paper stock.
Ink used and printed on coated stock (mostly litho and letterpress) to enable the ink to dry without penetration, leaving it glossy.
The unit of measurement for paper weight (grams per square metre).
In the book arena, the inside margins toward the back or the binding edges.Inserts
Within a publication, an additional item positioned into the publication loose (not bound in).
A thin transparent plastic sheet (coating) applied to, usually, a thick stock (covers, post cards, etc.) providing protection against liquid and heavy use. Usually accents existing colour, providing a glossy (or lens) effect.
Printing technique that transfers ink from a plate to a blanket to paper instead of directly from plate to paper.
On a "dummy", marking where the perforation is to occur.
Obsolete reference to Pantone Matching System. The correct trade name of the colours in the Pantone Matching System is Pantone colours, not PMS Colours.
Event at which make-ready sheets from the press are examined before authorising full production to begin.
Test sheet made to reveal errors or flaws, predict results on press and record how a printing job is intended to appear when finished.
Cross-hair lines on mechanicals and film that help keep flats, plates, and printing in register. Also called crossmarks and position marks.
Sharpness of an image on film, paper, computer screen, disc, tape or other medium.
Alternate term for dull finish on coated paper.
Paper that has not been coated with clay. Also called offset paper.
Liquid applied to a printed sheet, then bonded and cured with ultraviolet light.
Paper made exclusively of pulp from trees or cotton, as compared to recycled paper.
Press that prints from rolls of paper, usually cutting it into sheets after printing. Also called reel-fed press. Web presses come in many sizes, the most common being mini, half, three quarter (also called 8-pages) and full (also called 16-pages).
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