Jargon A-Z

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A-Z of commonly used printing terminology

Click on a letter  below to view details.

A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   S   T   U   V   W   

G/M2/GSM, Grams Per Square Metre
A unit of measurement for paper used in printing.

Gate Fold
Two parallel folds dividing a sheet into three segments, in which both the
outer segments are folded across the middle of the sheet in overlapping
layers.

Gripper Margin
An extra margin on a sheet where it is gripped on the press, later
trimmed away.

Guillotine
A machine for cutting a large number of sheets of paper accurately.

Gutter
Strictly speaking, the space on a sheet, imposed for printing, including
the foredges of the pages plus trim. Commonly, however, the term is
given to the margin ('back margin') down the centre of a double-page
spread, or to the vertical space between adjacent columns on a page.