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The definitive source for industry terms
When a term has more than one meaning, all explanations are displayed.
Page makeup   The assemblage of all the necessary elements required to complete a page.  
Panchromatic   Films or other photographic materials that are sensitive to all colors.  
Paperboard   Any paper with a thickness (caliper) of 12 points (.3mm) or more.  
Papeterie   A high-grade soft paper used for personal stationery because it accepts handwriting well.  
Parchment   A hard finished paper that emulates animal skin; used for documents, such as awards, that require writing by hand.  
Parent sheet   A sheet that is larger than the cut stock of the same paper.  
Paste drier   Any of a variety of compounds used in enhancing the drying properties of printing inks.  
Paste ink   An ink having a high level of Viscosity.  
Perfect   A term used to describe the binding process where the signatures of a book are held together by a flexible adhesive.  
Perfect Binding   A binding method used to put together a large number of pages into a book form. Usually a wrap around cover is glued onto several folded signatures and then trimmed afterwards. Eg: most phone books are perfect bound.  
Perfecting press   A printing press that prints on both sides of the page in a single pass.  
Phloxine   A blue red pigment used mostly in news inks; not a good ink for lithographers as it bleeds in alcohol and water.  
Photornechanical   The platemaking process where plates are coated with photosensitive coatings and exposed to photo negatives or positives.  
Photostat   A photographic print creating an image using photography and electrostatic processes; also called a stat.  
Phthalocyanine   The main pigment in the manufacture of cyan ink.  
Pica   A typesetting unit of measurement equaling 1/1 6th of an inch.  
Picking   When the tack of ink is stronger than the surface strength of the paper, some lifting of the paper surface occurs; this is referred to as picking.  
Picking   An occurrence in printing whereby the tack of ink pulls fibers or coating off the paper surface, leaving spots on the printed surface.  
Piling   A build up of pigment or paper coatings onto the plate, blankets or rollers.  
Pin register   Using metal pins fitted into preset holes of copy sheets, films, plates and presses that will assure the proper registration  
Plastic comb   A method of binding books whereby holes are drilled on the side closest the spine, and a plastic grasping device is inserted to hold the pages together.  
Plasticizer   An ink additive that adds flexibility, softness and adhesion.  
Plate cylinder   The cylinder on a printing press on which the plate is mounted.  
Plate finish   Any bond, cover or bristol stock with an extremely smooth finish achieved by calendaring.  
PMS   Not what you think! Abbreviation for the "Pantone Matching System". The Printing Industries special color standard. Eg: "I want this green to be Pantone 347"  
PMT   Photornechanical transfer.  
Point   A measurement unit equal to 1/72 of an inch. 12 points to a pica, 72 points to an inch.  
Point   Used to indicate the size of type. 1 point=1/72".  
Portrait A vertical page orientation. Eg: the depth of the page is greater than the width. (as opposed to landscape format)  
Positive   Film that contains an image with the same tonal values as the original; opposite of a negative.  
Ppi   Pages per inch.  
Premium   Any paper that is considered better than #1 by its manufacturer.  
Presensitized plate   A plate that has been treated with light sensitive coatings by the manufacturer.  
Primary colors   In printing the four primary colors are cyan (blue), magenta (red), yellow and black.  
Printability   The quality of papers to show reproduced printed images.  
Process Colors   see "CMYK"  
Process lens   A high quality specialty lens made for line art, halftone and color photography.  
Process printing   Printing from two or more half tones to produce intermediate colors and shades.  
Progressive proofs   Any proofs made from the separate plates of a multi-plate-printing project.  
Proof   Used to check copy for errors. Could be a laserprint of your text from your disk. A blueline proof is exactly a representation of what the finished product will look like on a special yellow/blue paper made from the film or negatives which , if okayed, will be used to make the printing plates. A Color Key is another type of proof used to see the precise color that will be produced when the job is finally printed.  

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