Glossary

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Deckle edge

Irregular, ragged edge on the outer edge of papers.

Descender

That part of a lower case letter which falls below the body of the letter.

Device driver

Software that enables a host computer to communicate with a hardware device.

Die-cutting

Special cutting device for punching holes or slits in covers, etc.

Digital image

Image that is scanned (digitized by a scanner) to a computer-readable format.

 

Dithering

A technique for mixing two or more colours together in a dot pattern to create the illusion of additional colours.

Dodging

Photographic term referring to the subtraction of exposure to selected areas of a print.

Dots

Halftone Minute, symmetrical subdivisions of the printing surface formed by a halftone screen.

DPI (dots per inch)

Also known as printer resolution Ñ is usually proportional to image resolution (ppi). The more dots per inch, the finer the resolution.

Drum scanner

High resolution scanner able to digitize reflective or transparent images.

Dummy

A rough form of any document.

Duotone
Dupe

Short form which describes duplicate versions of film negatives.

DVD CD-ROM

With additional storage capacity. Developed to play full length feature films using MPEG compression.

Dye-sublimation pringing

CMYK printing using ink ribbons for proofing output to high-quality paper.

Dylux

Pre-press positioning proof.