Glossary

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L.C. (lowercase)

Small letters of a font.

LAB (luminance*A*B) colour mode

Precise mathematical formula for describing image colour space. Used in colour management systems.

Laid paper

Paper having a series of parallel lines which simulate the look of handmade papers.

Laminate

Encases a single imaged sheet in a protective plastic material. Often used for posters and flyers.

Laser printing

Uses a combination of toner and laser heat to fix images to paper.

Laydown sequence

In CMYK printing, the sequence in which the colours are printed.

Leading

(pronounced "ledding") Metal type term for space between lines of type.

Legibility

Type that is composed and spaced for maximum speed of perception.

Letterpress

Printing method using a raised area.

Ligature

Two or three characters joined on one body.

Linespacing

Phototypesetting term for leading.

Lithography

Printing process whereby the image area is separated from the non-image area by means of chemical repulsion.

Logo

Identification image.

Logotype

Often referred to as logo. Identification image which includes letters.

Lossless

Describes an image-compression method that retains all image detail (See "LZW compression")

Lossy

Describes an image-compression method that reduces image detail in order to create a smaller file size.

Low resolution

A display system or printer which is unable to produce fine detail.

LPI (lines per inch)

Also known as screen frequency. Refers to the number of dots used to produce halftones for printing. (See also "halftones" and "screen frequency")

LZW compression

A lossless image compression method that does no discard detail from the image. Images are compressed by creating commonly recurring data bits.