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

Hairline (Rule)

Subjective term referring to very small space, thin line or close register. The meaning depends on who is using the term and in what circumstances. 


Half-scale Black

Black separation made to have dots only in the shadows and midtones, as compared to full-scale black and skeleton black.


Halftone

(1) To photograph or scan a continuous tone image to convert the image into halftone dots. (2) A photograph or continuous-tone illustration that has been halftoned and appears on film, paper, printing plate or the final printed product. 


Halftone Screen

Piece of film or glass containing a grid of lines that breaks light into dots. Also called contact screen and screen. 


Highlights

 Lightest portions of a photograph or halftone, as compared to midtones and shadows. 


Hinged Cover

Perfect bound cover scored 1/8 inch (3mm) from the spine so it folds at the hinge instead of, along the edge of the spine. 


HLS

Abbreviation for hue, lightness, saturation, one of the color-control options often found in software, for design and page assembly. Also called HVS. 


Hot Spot

Printing defect caused when a piece of dirt or an air bubble caused incomplete draw-down during contact platemaking, leaving an area of weak ink coverage or visible dot gain. 


House Sheet

Paper kept in stock by a printer and suitable for a variety of printing jobs. Also called floor sheet. 


Hue

A specific color such as yellow or green.