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A designation for the percentage of light reflected by a sheet of paper. The paper brightness is measured by a light meter. As the paper brightness increases, the degree of contrast between the paper and the print also increases. This is often an important element when printing photographs or colorful graphics. Paper with lower brightness is often best for books that do not include images because extended reading of text on high brightness paper can strain the eyes. Brightness levels are usually indicated on the paper packaging. The levels usually range from 84 to 98, which are adequate for most digitally printed applications. Brightness levels of 94 to 98 are most often used on color digital printers and presses.
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