Folding Formats

4 page single fold


6 page single fold


4 page gate fold


8 page parallel map fold


6 page concertina fold


6 page standard fold


8 page concertina fold


8 page parallel double fold


SRA2 double folded to A4



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

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.

Carbonless paper:paper coated with chemicals that enable transfer of images 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 the full colour spectrum.

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.

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.

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.

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).

Gutter:line or fold at which facing pages meet.

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

Imagesetter: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.

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

Line copy:copy which can be reproduced without using halftones.

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

Over-run:copies printed in excess of the quantity specified in the order.

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

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).

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 perfect alignment (‘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.

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.

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

Paper Sizes

A sizes (mm) B sizes (mm) C sizes (mm)
A0 841 x 1189 B0 1020 x 1440 C0 917 x 1297
A1 594 x 841 B1 720 x 1020 C1 648 x 917
A2 420 x 594 B2 520 x 720 C2 458 x 648
A3 297 x 420 B3 360 x 520 C3 324 x 458
A4 210 x 297 B4 250 x 353 C4 229 x 324
A5 148 x 210 B5 176 x 250 C5 162 x 229
A6 105 x 148 B6 125 x 176 C6 114 x 162
A7 74 x 105 B7 88 x 125 C7 81 x 114
A8 52 x 74 B8 62 x 88 C8 57 x 81
A9 37 x 52 B9 44 x 62 C9 40 x 57
A10 26 x 37 B10 31 x 44 C10 28 x 40

Printer Marks