Knowledge Center

Here is a list of terms that are used in the world of print:

Artwork that prints off the edge of the page. Bleed varies in size from 1/4″ (0.25″) to 1/8″ (0.125″) around the edge of the page.

An abbreviation used to describe the four process colors – cyan, magenta, yellow, and black.

Coated Paper:
Paper with a clay coating that improves ink holdout. Common types of coated paper include gloss, enamel, slick, matte and dull.

Color Separation:
The process of separating a full-color original into the four primary printing colors (cyan, magenta, yellow, and black).

Digital Printing:
A method of printing from a digital based image directly to a variety of media. Printing where small run jobs from desktop publishing and other digital sources are printed using large format high volume laser or inkjet printers.

Digital Proof:
Any proof output from a digital artwork file directly to an electronic printing device (such as a Xerox).

DPI (Dots Per Inch):
A form of measurement that refers to the number of dots (or spots) that a printer can create per linear inch (for example, 300 dpi).

Pressing an image into paper creating an indentation onto the paper surface.

EPS (Encapsulated Postscript):
A file format used to save vector graphics for a variety of computer applications.

Typeface of a specific style.

The direction in which fibers on a sheet of paper run. 

The leading edge of the paper as it passes through the press. 

Very thin line – the width of a hair: 1/100″ (0.01″).

Image Area:
A portion of paper on which the ink will appear.

The process of arranging pages on a press sheet so that they will appear in the proper sequence after the press sheets are folded and bound.

JPEG (Joint Photographic Experts Group):
A file format commonly used to save and compress photographs. Most commonly used to display photos on a web page.

LPI (Lines per inch):
Resolution term used in printing that designates the number of halftone dots per inch that are printed horizontally and vertically.

Offset Printing:
A method of printing that transfers ink from a plate to a blanket, and then from the blanket to the paper.

PDF (Portable Document Format):
A file format from that incorporates all of the elements of a document – fonts, graphics and page layout – for viewing and printing.

PMS Color (Pantone Matching System):
The standard for ink color manufacture and reproduction.

The standard color matching system. Colors are denoted by a number in a pantone book (such as Pantone 347).

A process used to check an electronic file for output on a printing device. The process involves checking for the presence of all of the high resolution graphic files, fonts, and other required elements necessary to properly print a file.

Process Color:
Refers to the CMYK color model used in offset printing.

A price that is offered to the customer by the printer to print a specified job.

Type or other image reproduced by printing the background rather than the image itself, allowing the underlying color of paper to show in the shape of the image.

Red, Green, and Blue color space. Commonly used for viewing colors on computer monitors.

To compress the paper along a line so it will fold more easily.

The name given to a printed sheet after it has been folded.

Spot Color:
Any color generated by an ink that is printed during a single run.

Alternate term for paper.

TIFF (Tagged Image File Format):
A portable file format used for saving bitmap images for printing.

When two or more colors touch. Trap is the overlap allowed preventing white space from appearing between colors.

The process of entering, as well as formatting, type on a page.

Positioning the same images more than once onto one sheet of paper to create a shorter press run.

UV Coating:
Liquid laminate bonded and cured with ultraviolet light.

A clear liquid that is applied to printed paper used to protect the product. Can be done full (or spot) color process.

A transparent logo put over a digital photograph, usually seen on the web.