One side of a leaf in a publication.

Total number of pages that a publication has. Also called extent.

Proof of type and graphics as they will look on the finished page complete with elements such as headings, rules and folios.

In the book arena, the numbering of pages.

Sheet printed with ink edge to edge, as compared to spot color. The painted sheet refers to the final product, not the press sheet, and means that 100 percent coverage results from bleeds off all four sides.

One page of a brochure, such as one panel of a rack brochure. One panel is on one side of the paper. A letter-folded sheet has six panels, not three.

A printing plate made of strong and durable paper in the short run offset arena (cost effective with short runs).

Method of folding. Two parallel folds to a sheet will produce 6 panels.

Any sheet larger than 11' x 17' or A3.

To paste copy to mounting boards and, if necessary, to overlays so it is assembled into a camera-ready mechanical. The mechanical produced is often called a paste-up.

Chipboard with another paper pasted to it.

Proofreader mark meaning printer error and showing a mistake by a typesetter, prepress service or printer as compared to an error by the customer.

On a "dummy" marking where the perforation is to occur.

To bind sheets that have been ground at the spine and are held to the cover by glue. Also called adhesive bind, cut-back bind, glue bind, paper bind, patent bind, perfecting bind, soft bind and soft cover. See also Burst Perfect Bind.

Press capable of printing both sides of the paper during a single pass. Also called duplex press and perfector.

Creating a series of lines of small dotted holes for the purpose of allowing the paper to be easily torn-off a part of a printed matter (usually straight lines, vertical or horizontal). Postage stamps and tear-off cards are common products that require perforation. The process takes place on a press or a binder machine.

Engraving done using photochemistry.

Brand name for a diffusion transfer process used to make positive paper prints of line copy and halftones. Often used as alternate term for photostat. Abbreviated PMT.

Brand name for a diffusion transfer process used to make positive paper prints of line copy and halftones. Often used as alternate term for PMT.

A unit of measure in the printing industry. A pica is approximately 0.166 in. There are 12 points to a pica.

Phenomenon of ink pulling bits of coating or fiber away from the surface of paper as it travels through the press, thus leaving unprinted spots in the image area.

Artwork, used in a previous job, to be incorporated in a current job.

Technique of registering separations, flats and printing plates by using small holes, all of equal diameter, at the edges of both flats and plates.

Small holes (unwanted) in printed areas because of a variety of reasons.

The smallest unit of a digitized image created by a digital device, such as a computer, camera, or scanner. Pixel is short for "picture element." The more pixels per inch the better the resolution. On computer monitors, the display is divided into rows and columns containing thousands or millions of pixels. Each pixel is composed of three dots representing the three color channels of red, green, and blue light that are necessary for creating a color image on computer monitors and television screens. Because of their small size, the pixels appear to merge, simulating a continuous tone image, but when magnified they appear to be tiny square blocks of light.