Additive Colour System
Adobe's Portable Document Format, usually shortened to PDF.
Model for colours produced by light emitted from a source, as opposed to the subtractive colour system from reflected light. The additive primary colours are red, green and blue (RGB), which can produce any other colour.
Type of thread-less binding in which the pages of a book are held together at the binding edge by glue - also referred to as perfect binding.
Against the Grain
At right angles to the grain - direction of the paper being used, as compared to with the grain. Also called across the grain and cross grain.
Tool that delivers a fine spray of ink or paint to retouch photos and create continuous-tone illustrations.
Any change made by the customer after copy or artwork has been given to the printer.
Amplitude Modulation screening - traditional screening method that turns a continuous tone image into a series of different sized dots. In AM screening the dots are spaced in a uniform pattern. See Stochastic Screening.
Water-based coating to protect the printed image.
All original copy, including type, photos and illustrations, for printing.
Finished printing trimmed sizes in the ISO international paper size range. A0 - 841 x 1189mm A1 - 594 x 841mm A2 - 420 x 594mm A3 - 297 x 420mm A4 - 210 x 297mm A5 - 148 x 210mm A6 - 105 x 148mm
ISO international sizes intended primarily for posters and wall charts. B0 - 1000 x 1414mm B1 - 707 x 1000m B2 - 500 x 707mm B3 - 353 x 500mm B4 - 250 x 353mm B5 - 176 x 250mm
A test site for printing hardware and software - usually a company that has a strong relationship with the manufacturer.
To join the pages of a document together with either wire, glue or other means.
A department within a printing company responsible for creating finished, saleable products.
The basic unit of digital information used in computing.
A grid of pixels or printed dots generated by computer to represent type and images.
A graphic image file comprising a fixed number of dots.
Printing that extends to the edge of a sheet or page after trimming.
The main text of work not including the headlines.
Folded signatures / book sections gathered, sewn and trimmed, but not yet covered.
Paper brightness is measured by a light metre reading of the percentage of light reflected back from a sheet of paper.