Glossary

Listed below are a number of common terms that you may encounter while using this website or in your dealings with Central Print. If you have a query related to a term not covered below please contact us.

A

Absorbency

How much liquid paper will hold.

 

Adhesion

The bond between ink and what it is printed on.

 

Aqueous

Links or other coatings that are water-based based.

 

Artwork

A finished copy of your document, ready for reproduction.


B

Back up

Print on the reverse side of a sheet.

 

Binding

The process of fastening paper.

 

Bleed

The part of a printed image that extends beyond the trim edge of a sheet.

 

Bulk

The thickness and feel of a paper.

C

Clipping path

An outline path, embedded into a file, that indicates which areas of a picture should be transparent.

 

CMYK

Stands for cyan, magenta, yellow and key (black). These are the four process colours, which can be combined to produce the full colour spectrum.

 

Collating

Placing sheets of paper in the correct order to form a document.

 

Colour separation

The separation of a single colour into its component colours (CMYK) for printing.

 

Crop marks

Lines that indicate where to trim, perforate or fold a document.

 

D

Die cutting

Cutting out a custom shape such as a pocket or an unusually shaped document.

 

DPI

Stands for dots per inch. A measure of the quality of an image; the more dots per inch, the higher the quality.

 

Dummy

A mock-up of the final product, made to give an indication of the weight and finish.

 

E

EPS

Stands for Encapsulated PostScript, a type of computer file generally used for vector graphics.

 

F

Full colour

Using the four basic colours (cyan, magenta, yellow and black) to produce a document.

 

G

Gate fold

A type of fold with three panels, where the two outer panels are half the width of the inner panel and meet at the centre of the document.Greyscale

Printing in shades of grey, this only uses one colour – black.

 

Gutter

The gap between two pages of a document.

 

K

 Knockout

A shape printed by eliminating background colours.

 

L

Laminate

Applying a thin film coat to the document to create a more gloss or matt finish.

 

O

Over-run

Extra copies printed in excess of the original order.

 

P

Pantone ® colour

Premixed colours that can be specified as a spot colour. Pantone colours can be matched using CMYK, but this can be slightly different from the original Pantone.

 

Perfect binding

A binding method where pages are glued rather than sewn.

 

Process colour

A colour specified in its component cyan, magenta, yellow and black parts.

 

Proof

A one-off version of the finished document for the customer to check for errors before it is printed.

 

R

Resolution

The number of DPI in an image or document.

 

Reversed-out

When type appears as white on a solid colour background.

 

RGB

Stands for red, green and blue. RGB is generally used for computer displays, but cannot be used for printing (it has to be converted to CMYK).

 

S

Saddle stitch

A binding method where a document is stapled through the middle fold.

 

Scanning

The process of converting a hard copy (eg a photograph) into a soft (digital) format.

 

Score

To part cut into heavy paper to allow for easier folding.

 

Spot colour

A colour that is not made using process (CMYK) colours. The ink for the colour is made specifically for the colour, and is usually a Pantone colour reference.

 

Spread

Two or more pages that join together.

 

T

TIFF

An image file format, recommended for images that are going to be printed.