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Pin Register: A standard used to fit film to film and film to plates and plates to press to assure the proper registration of printer colors.
Plate Gap: Gripper space. The area where the grippers hold the sheet as it passes through the press.
PMS: The abbreviated name of the Pantone Color Matching System.
PMT: Abbreviated name for photomechanical transfer. Often used to make position prints.
Point: For paper, a unit of thickness equaling 1/1000 inch. for typesetting, a unit of height equaling 1/72 inch.
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