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To adjust the space between letters so that it appears optically proportioned. In hot metal, a kern was any part of a letter that extended into the space occupied by an adjacent letter.
A color-coded legend that explains symbols or identifies colors to be printed in a piece of artwork, such as a color key.
The plate used as a guide for the registration of other colors.
Artwork for offset reproduction that shows outlines indicating the exact shape, position, and size of halftone elements and line sketches.
The money paid to a writer when the publication has contracted with the writer to write an article, but the article is never published.
A very light printing impression.
To remove the background color on which type or graphics are being printed, as opposed to an overprint.
A brown paper or board containing unbleached wood pulp, causing its brown color.