Glossary of Printing Terms

G

Gatefold - an oversize page where both sides fold into the gutter in overlapping layers. Used to accommodate maps into books.

Graduated screen - A smooth transition between black and white, one color and another, or color and the lack of it.

Grayscale - a range of luminance values for evaluating shading through white to black. Also, a term used when referring to a black and white photograph.

Gutter - the central blank area between left and right pages.