Kerning In typesetting, subtracting space between two characters, moving them closer together. Negative letterspacing can apply to two letters (kerning) or to any other group of letters.

Key To code copy to a dummy by means of symbols, usually letters. Insertions are sometimes keyed in like manner.

Keyline An outline drawing of finished art to indicate the exact shape, position, and size for such elements as halftones, line sketches, etc.

Kilobyte (K or kb or KB) 1024 bytes, the most common measure of computer file length.

Kiss impression In printing, a very light impression, just enough to produce an image on the paper.

Kraft A paper or board containing unbleached wood pulp (brown in color) made by the sulfate process.