Half Up - Artwork one and a half times the size which it will be reproduced.

Half Web - Web press whose width and cutoff allow printing eight 8 1/2 x 11 pages on one press sheet.

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 - A reproduction of an image by breaking down the original tone into a pattern of dots of varying size. Light areas have small dots and darker areas or shadows have larger dots.

Halftone Dots - Dots that by their varying sizes create the illusion of shading or a continuous-tone image.

Halftone Screen - Piece of film containing a grid of lines that breaks light into dots as it passes through. The number of lines to the inch controls the coarseness of the final dot formation. The screen used depends on the printing process and the paper to be used, the higher the quality the more lines can be used.

Halo Effect - Faint shadow sometimes surrounding halftone dots printed. Also called halation. The halo itself is also called a fringe.

Hanging Punctuation - Punctuation that is allowed to fall outside the margins instead of staying within the measure of the text.

Hard Bind - Alternate term for Case bind.

Hard Cover - Bound with a case of binder's board.

Hard Dots - Halftone dots with no halos or soft edges, as compared to soft dots.

Hard Mechanical - Mechanical consisting of paper and/or acetate and made using paste-up techniques, as compared to electronic mechanical.

Hardback - A case bound book with a separate stiff board cover.

Hardwood - Wood from trees having short fibers. These fibers are used in papermaking to obtain good formation, smoothness and opacity and a good print surface.

Head(er) - The margin at the top of a page.

Head Stops - Adjustable posts on register unit of a press that properly position leading edge of a sheet.

Head-to-tail - Imposition with heads (tops) of pages facing tails (bottoms) of other pages.

Headers - Paper discs applied to the ends of rolls for protection.

Heat-set Web - Web press equipped with oven to make ink dry faster, thus able to print coated paper.

Helvetica - A sans serif typeface.

Hickey - A dust particle sticking to the printing plate or blanket which appears on the printed sheet as a dark spot surrounded by an halo.

High Contrast - Few or no tonal gradations between dark and light areas.

High-bulk Paper - Paper made relatively thick in proportion to its basis weight.

High-fidelity Color - Color reproduced using six, eight or twelve separations, as compared to four-color process.

High-key Photo - Photo whose most important details appear in the highlights.

Highlight - The lightest areas in 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.

Holding Fee - Charge made to clients who keep photograph longer than agreed to.

Holdout - Term Refers to the ability of a sheet to resist penetration by ink.

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.

Hue - A specific color such as yellow or green.

Hydration - Any process of altering cellulose fibers to increase their ability to absorb water.

Hygroscopic - Ability to absorb water vapor from the surrounding atmosphere.

Hypo - Alternate term for Fixer.

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