Printing Terminology Explained
Printing is a complex business and it takes a lot of experience to get things right first time. Here are some common terms that may help you.
Here are some well used common print terms
There are two basic methods of modern printing that we use:
Digital and Lithographic.
Digital printing is used for short runs of approximately 500.
Lithographic is a wet ink process that usually applies to print runs of 500 plus.
Terms you may hear:
4:0 or 4:1 or 4:4 etc
Refers to the number of colours used per side. This can be referred to as four back zero / four back one / four back four.
4 Colour Process
Technique of printing that uses the four process colours of ink to simulate colour photographs or illustrations. See CMYK.
4pp
A product that has four pages and usually consists of a sheet folded in half. The 'outside right cover' is the first page, the 'inside' forms pages two and three, and the fourth page is the 'outside left cover'. For instance, an A4 sheet folded in half becomes an A5 4pp brochure.
4pp A4
A product where an A3 sheet is folded in half to create a multi-page A4 product. The first page is the outside right front cover, the second page is the inside left, the third page is the inside right, and the fourth page is the outside left cover. It is also known as double A4.
6pp
A product that has six pages and usually consists of a sheet folded into thirds. Each of the six panels are referred to as pages. For instance, an A4 page folded into three becomes a 6pp DL brochure.
8pp
A product that has eight pages and usually consists of a sheet folded into quarters. Each of the eight panels are referred to as pages. For instance, an over-sized A4 page folded into four becomes an 8pp DL brochure.
COMMON TERMS
- A -
Art Work or Artwork
Any materials or images which are prepared for printing. As a general rule, artwork should be supplied as a high resolution PDF at 300 dpi, with crop marks and 3mm bleed.
A-Sizes
The most common paper sizes used for stationery, leaflets and other publications.
A0 - 841 x 1189 mm
A1 - 594 x 841 mm
A2 - 420 x 594 mm
A3 - 297 x 420 mm
A4 - 210 x 297 mm
A5 - 148.5 x 210 mm
A6 - 105 x 148.5 mm
A7 - 74 x 105 mm
A8 - 52 x 74 mm
A9 - 37 x 52 mm
A10 - 26 x 37 mm
Authors Amendments
Changes made by the customer, usually at the proofing stage. These are sometimes chargeable, as opposed to in-house errors which are not.
Author or Customer Alterations (AA, CA's)
Changes made after the proof stage where a customer is responsible for additional charges.
- B -
Back to Back
Printing applied to both side of a sheet of paper.
Binding
Various methods of securing folded sections together and or fastening them to a cover, to form single copies of a book. Used on a spine.
Saddle Stitched and Perfect Binding are the most common
Black
Ink that is one of the process colours. Also known as K in CMYK.
Bleed
Where the image to be printed extends (usually by 3mm) over the crop marks. This makes trimming easier and means the finished documents will run to the edges.
Block Foiling
Where a design is stamped into the cover, usually in a metallic foil.
Grade of paper commonly used for file folders, display, and postcards.
Boldface
Type that has a heavier stroke that makes it bolder.
Brochure
A pamphlet to convey or promote message.
B-Sizes
Larger than A-sizes, most sheet-fed print presses take these paper sizes. It then allows for trimming to A-sizes.
B0 - 1000 × 1414 mm
B1 - 707 × 1000 mm
B2 - 500 × 707 mm
B3 - 353 × 500 mm
B4 - 250 × 353 mm
B5 - 176 × 250 mm
B6 - 125 × 176 mm
B7 - 88 × 125 mm
B8 - 62 x 88 mm
B9 - 44 × 62 mm
B10 - 31 × 44 mm
Caps & Lowercase
Instructions in the typesetting process, that indicate the use of a capital letter and the rest of the letters in lower case.
Caps & Small Caps
Two sizes of capital letters made in one size of type.
CMYK
Abbreviation of Cyan, Magenta, Yellow and Black. These make up the standard 4 colour process used for printing in full colour.
Collate
To assemble sheets into proper sequence.
Colour Process
Alternate term for 4-colour process printing.
Colour Separation
Set of four colours (CMYK) for 4-colour process printing.
Copyright
Ownership of creative work by the writer, photographer, or artist who made it.
Crop Marks
Lines marking where the paper is to be trimmed after printing. These should be part of the artwork.
C-Sizes
Paper sizes used for envelopes. These correspond to A-sizes (e.g. C4 envelope will hold A4 sheets).
C3 - 324 x 458 mm
C4 - 229 x 324 mm
C5 - 162 x 229 mm
C6 - 114 x 162 mm
DL - 110 x 220 mm (holds A4 folded twice)
Cutting
Process of cutting paper with guillotine cutter
Cyan (C)
One of the ink colours (blue) that is used as a process colour (CMYK).
- D -
Design Brief
Written description of how a printed piece is intended to look and the requirements for reproducing it.
Digital Printed Proofs
Proofs printed digitally (not lithographically). These are suitable for checking layout and pagination but not for colour. The reason being they will be printed on different paper and/or using a different machine to the finished product. These can usually be offered free of charge.
Digital Printing
Low cost method of printing best suited for short run jobs. It works directly from electronic data without the need for printing plates. This makes the process very quick but the print quality, although a good alternative is not on par with lithography. Also, you cannot use specific spot colours or metallic inks.
DL
Envelope size to hold an A4 sheet folded twice (or a compliment slip). 220 x 110mm. See C-sizes.
DPI
Dots per inch, or the image resolution. For print, all images in a document should always be a minimum of 300dpi.
Drop Shadow
A shadow image placed strategically behind an image to create the effect of a shadow from light.
- F -
Finished Size
The size once trimmed and folded.
Four Colour Printing
Usually means process printing (CMYK)
Full Colour
Printing in CMYK, as opposed to using spot colours. Although you can print full colour with additional spot colours.
- G -
Graphic Designer
Professional who conceives of the design for, plans how to produce, and may coordinate production of a printed piece.
Graphics
Art and other visual elements used to make messages more clear.
Grey Scale
Strip of swatches of tone values ranging from white to black used by process camera operators to calibrate exposure times.
GSM
Grams per square metre. This is the standard measurement of weight for paper.
- H -
Hi Res
Short for High Resolution.
- I -
Illustrator
A vector based software program from Adobe.
Italic
Type that is slanted body forward.
- J -
Jacket
The paper cover that goes over a hardbound book.
Jpeg
A file format for photos it is typically used because of its ability to compress files. (It creates a smaller file than a TIFF file and it is used mainly on the Internet.) Printers prefer TIFF over Jpeg files.
- K -
Kerning
The measure of space between letters.
- L -
Laminating
Where a thin plastic film is fixed to one or both sides of the paper. This can create a silky matt or a high gloss finish, depending on the intended purpose and personal preference. It also acts as a protective barrier if the print needs to be more durable or is likely to encounter a demanding environment.
Landscape
Where a document is oriented so the long edges are at the top and bottom. As opposed to portrait.
Layout
A dummy that shows the placement of all the elements. Sketch or drawing of a design for a proposed printed piece showing position, size, and colour of copy.
Leading
Space between the lines of type
- M -
Margin
Space forming border of a page or sheet.
- O -
Origination
The files to be printed which make up the artwork. Usually a print ready PDF.
- P -
Page
One side of a sheet of paper -whether printed or not. For example, an A4 sheet has 2 pages. An A4 sheet folded in half to A5 has 4 pages.
Page count
Total number of pages, including blanks and printed pages without numbers.
Pantone®
The Pantone Colour Matching System is a standardized colour reproduction system. By standardizing the colours, different manufacturers in different locations can all refer to the Pantone system to make sure colours match without direct contact with one another. The Pantone system also allows for many special colours to be produced, such as metallic and fluorescents.
Pantone colours are often referred to as spot colours.
Portable Document Format is a universal file format which combines images and text. Adobe's continual development and the implementation of ISO standards has made it the ideal format for designers to supply print ready artwork in.
Perfect Binding
Perfect Binding is a method for binding printed sheets suitable for binding documents where they are too thick to saddle stitch. Where the text pages are glued in to the cover. Perfect Binding is most commonly used on paperback books. See also burst binding and drawn on covers
PMS
Pantone Matching System. Followed by 3 or 4 digits to make up a code e.g. PMS 072.
Point
A measurement unit equal to 1/72 of an inch. 12 points to a pica, 72 points to an inch.
Portrait
Where a document is oriented so the long edges are on either side. As opposed to landscape
PP
Printed pages. Refers to the number of pages in a document e.g. 12pp (12 pages).
PPI
Pixel per inch.
Prepress
Alternate term for Preparation.
Process blue
Alternate term for Cyan.
Process colours
The colours needed for 4-color process printing: yellow, magenta, cyan, and black.
Process Inks
CMYK, Cyan, Magenta, Yellow and Black that create images in full colour.
Process Printing
CMYK printing - Alternate term for 4-color process painting.
Process red
Alternate term for Magenta.
Proof
Proofs are an example of what is to be printed so both parties are in agreement. Any errors or amendments should be picked up at this stage. This can take the form of a digital proof, usually supplied as a PDF, or a printed proof. See digital proofs and wet proofs for more details.
Proof OK
Customer signature approving a proof and authorizing the job to advance to the next stage.
Proofread
To examine copy or a proof for errors in writing or composition.
- Q -
Quotation
Printer's offer to print a job for a specific price calculated from specifications and dummies provided by customer.
- R -
Ream
500 sheets of paper.
Run
Total number of copies ordered or printed.
- S -
Saddle Stitching
Stitching where the wire staples pass through the spine from the outside and are clinched in the centre which is only used with folded sections in four page increments.
Self Cover
A cover made out of the same paper stock as the internal sheets.
Spine
Back edge of a book
Spiral Bind
A form of binding using a spiral of continuous wire or plastic looped through punched holes in the documents back margin. This can be either metal or plastic.
Spine
How do I know how wide the spine will be?
There’s a simple formula which determines that width. Just take the number of pages in your book and divide that figure by your text paper’s PPI (Pages Per Inch). Where do you get the PPI? Let’s say your book has 200 pages and you are printing it on a web press using a paper which has a PPI of 400. Then the width of your book’s spine will be 200 ÷ 400 or half an inch. That’s for a paperback. For a hard cover book, you have to add the thickness of the boards. The easiest way to do this accurately is to have your printer provide you with a template.
Spiral bind
To bind using a spiral of wire or plastic looped through holes.
- T -
Thermography
Raised printing used to simulate engraving, which is printed offset with resin powder and heat that melts the resin on the ink.
Trim Marks
Marks placed on the sheet to indicate where to cut the page
Trim size
Size of the printed product after last trim is made.
Turnaround time
Amount of time needed to complete a job or one stage of it.
- U -
UV coating
Liquid laminate bonded and cured with ultraviolet light.
- W –
Wire Stitching or Stapling
To fasten together sheets, signatures, or sections with wire staples.
- Y -
Yellow (Y)
Also one of process colours (CMYK).