Pad: To bind by applying glue along one edge of a stack of sheets.
Page Count: Total number of pages, including blanks and printed pages without numbers.
Pages Per Inch: Number of pages per inch of thickness of a bound publication. Each
sheet has two pages.
Pallet: Wooden platform used as a base for loading and moving paper and printed
Paper Dummy: Unprinted sample of a proposed printed piece trimmed, folded, and,
if necessary, bound using paper specified for the job.
Parchment: Paper that simulates writing surfaces made from animal skins.
Parent Sheet: Paper distributor term for sheet 17 x 22 or larger.
Pixel: Short for picture element, referring to a part of a dot made by a scanner
or other digital device.
PMS: Abbreviation for PANTONE MATCHING SYSTEM, a check standard trademark for color
reproduction and color reproduction materials owned by Pantone, Inc.
Point: In paper, unit of thickness equaling 1/1000 inch. In typesetting, unit of
height equaling 1/72 inch.
PPI: Short for pages per inch.
Prepress: Alternate term for Preparation.
Press Check: Event at which test sheets are examined before production run is authorized
Price Break: Quantity level at which unit cost of paper or printing drops.
Process Blue: Alternate term for Cyan.
Process Colors: The colors needed for 4-color process printing: yellow, magenta,
cyan, and black.
Process Inks: Inks in the four process colors.
Process Red: Alternate term for Magenta.
Proof: Test sheet made to reveal errors or flaws, predict results, and record how
a printing job is intended to appear.
Proof OK: Customer signature approving a proof and authorizing the job to advance
to the next stage.
Proofread: To examine copy or a proof for errors in writing or composition.