Glossary of Printing Terms

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Acrobat PDF:
A popular electronic document format. It embeds all typeface, graphic and page layout information into the one compact file. Its appearance won't change regardless of computer platform or printer. This makes it ideal for proofing work electronically.

author's alterations:
customer's corrections/changes made at the proofing stage. These are charged to the customer.

B

binding:
process of fastening papers together.

bitmap:
a grid of pixels or printed dots generated by computer to represent type and images.

bleed:
the printed image extends beyond the trim edge of a sheet or page. A bleed may occur at the head, front, foot and/or gutter of a page.

C

carbonless paper:
paper coated with chemicals that enable transfer from one sheet to another with pressure from writing or typing.

cmyk:
abbreviation for cyan, magenta, yellow and key (black), the 4 process colours, which combined together in varying proportions can be made to produce colour pictures or simulation of special colours.

collating:
arranging of printed sheets into the desired sequence.

colour separation:
process by which a continuous tone colour image is separated into the four process colours for print production.

cover paper:
a heavyweight paper made particularly to protect inner, thinner sheets of such printed items as booklets.

crop marks:
marks at the edges of an illustration or photograph to indicate the portion to be reproduced or the position of the trim.

D

DPI:
dots per inch; measure for output resolution of various devices.

dummy:
a mock-up made to resemble the final printed product which uses the proposed grade, weight, finish and colour of paper.

E

estimate:
a price given to a customer based on specifications provided by the customer. The price can change if the order specifications are not the same as the estimate specifications.

F

flush:
even with (as with to a margin).

four-colour process: reproduction of full-colour photographs or art with the four basic colours of ink (yellow, magenta, cyan, black) or simulation of special colours.

G

gutter:
line or fold at which facing pages meet.

H

halftone:
picture with shades of tone created by varying size dots.

I

J

justified:
text which is flush to both the left and right margins.

K

L

line work:
illustrations, logo's or copy which can be reproduced without using dots or halftones.

M

make-ready:
the work associated with the set-up of printing equipment before running a job.

N

numbering:
usually used on NCR sets or raffle tickets.

O

overs:
copies printed in excess of the quantity specified in the order.

P

perfect binding:
a bookbinding method in which pages are glued rather than sewn to the cover. Used primarily for paperback books.

platesetter:
a device that plots high-resolution bitmaps which have been processed by a RIP. May include type, graphics and photographic images. It outputs a to film or paper.

point:
a measurement for the size of type, distance between lines and thickness of rules. One point equals one seventy-second of an inch (0.3515mm).

Q

quickly:
when a job is required.

R

ragged right:
typesetting style in which lines end in unequal lengths on the right side (usually justified on left).

registration marks:
crosses or other marks placed on artwork which ensure alignment of colours ('registration').

reversed-out:
type appearing white on a black or colour background, either a solid or a tint.

resolution:
the number of dots per inch (dpi) in a computer-processed document. The level detail retained by a printed document increases with higher resolution.

RIP (raster image processor):
computer used to create an electronic bitmap for actual output. This may be built into an imagesetter or may be separate.

S

saddle stitch:
a binding process in which a pamphlet or booklet is stapled through the middle fold of its sheets using saddle wire.

score:
a pressed mark in a sheet of paper, usually a thick paper, to make folding cleaner and easier.

self-cover:
the paper used inside a booklet is the same as that used for the cover and is generally printed on the same press run.

signature:
folded, printed paper forming a section of a book; usually in a multiple of four, and more often a multiple of eight.

solid:
an area on the page which is completely covered by the ink.

stock:
the paper or card which is to be printed on.

T

transparency:
or slide: 35mm, 4" x 5" or 8" x 10" positive colour image on film which can be projected on a screen or scanned as artwork.

tint:
an area of tone made by a pattern of dots, which lightens the apparent colour of the ink with which it is printed.

U

undercolour:
reducing CMY and adding K to reduce ink coverage.

V

varnishing:
all over seal or varnish to seal the ink onto the paper.

W

wash up:
clean the press ready to put in a different colour ink.

X

extra costs:
a hated thing in print when things change and therefore cost more.

Y

why can't we have the job quicker?
the usual conversation between client and printer.

Z

zebra:
like a panda but different!

© Panda Press 2004