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Paper Sizes

Standard paper sizes provide a convenient and efficient means for the designer. It makes communication between the designer and the printer much simpler as specific format sizes are known to both parties.

A SizesThis series of paper sizes is used to print things from post-ers, to postcards, magazines and office paper.

B SizesB formats are used for printing books with. These sizings are not as commonly used as A sizes.

C SizesEnvelopes are the most common format to use C Sizes.

ISOThe ISO standard provides a range of standard paper sizes, so that it can cater for common print needs. ISO is built up by the 3 main categories A, B and C sizes.

Paper & Envelope SizesStandardised paper sizes provide easy selection for specific print jobs. Having these standard formats makes it easier for clients and designers to communicate and understand on a common ground.

Imposition

Imposition is the arrangement of the pages within a pub-lication and enables the designer and the printer to com-municate more easily about the finished appearance.

Throw-outs and GatefoldsThrow-outs and gatefolds are different methods you can use to add extra pages within a publication. These pages create an oversized page and are typically used to show large images or visual elements.

Throw-outsA throw out is made out of three panels. The first two are the same size as the publication and the third is slightly smaller. It is bound into the publication as an additional fold out panel. This panel is slightly smaller than the origi-nal two, so that it can be folded in without being seen.

GatefoldA gatefold is made up of four panels instead of the three in a throw-out. These are the same size as the publica-tion. The two fold out pages on either side fold out from the spine. This is often used in magazines as additional pages.

Bleed and Slug

BleedA bleed is an area outside of your artwork, usually 3mm. It extends your page slightly, this means that there will be no uneccessary white space around the edges of your printed page. A bleed is only usually used when a piece of artwork reaches the edge of the printed area. The design will be trimmed after printing to the exact proportions of the page dimensions.

SlugA slug is again an area outside of the printed page. This entends outside of your bleed and is used for any document information. It will display the name, size, time printed etc. Elements such as trim marks, notes, registration marks and colour modes can also be added into the slug before printing. All of the information in a slug will be cut away after trimming takes place.

Registration and Trim

RegistrationRegistration is used to align two or more printed images with each other on the same stock. Registration is unneccessary in a one colour print job as there are no printing plates to be aligned, however with two or more colours involved things become more tricky. In the commercial printing process each colour in one design is printed on separate printing plates. These plates must be registered on top of one another to align any imagery to make sure that their desired colours and tones are created when printed.

Mis-registration can cause blurred imagery, or incorrect colour choices. To help aid registration to can add registration marks to your document, these will print onto every coloured layer and help the printer to align each layer on top of one another.

TrimOnce your artwork has been printed successfully, the printer will take it to be trimmed. This process will get rid of any waste stock to leave the document in it’s chosen format and size.

Trim marks can be added before trimming takes place, these can be edited in the bleed and the slug settings.

Proof

Print

Publish

Prefight and Proofing

PreflightingPreflighting is a term used in the printing industry that describes the process of confirming that the digital files required for the printing process are all present, valid, and correctly formatted. Any missing files can be re-placed from the prefligh check dialogue box.

ProofingProofs are also a very necessary aspect before taking a document to print. Preflight does not recognise all errors. It is important to get numerous people to read through your document to check for gramatical or spelling errors. You must also check that the resolution of all images is 300dpi for printing to avoid pixelations or blurring.

There are numerous different ways in which you can proof a document. Things to consider checking are colour, registration and layout:

Laser ProofA black and white computer print.

Prepress ProofAn analogue or digital proof that gives an approximation of what the finished print will appear to look like.

Press ProofA proof produced using the actual ink, paper and plates.

Scatter ProofA proof of an individual photo or group of photos not incldued as the part of the print layout.

Composite Integral Colour ProofA high quality proof produced using four sheets, one for each colour of CMYK. These are then lamoinated together using registration.

Blue Line Proof A contact proof produced from film. This shows imposition photos and text as they will appear when printed.

Screen ProofA proof used for layout and colour information control. This also checks the screen structure of a print.

Contract ProofA colour proof used to form a contract between the print and client. This is the final point of contact before sending a design to press.

A beginner’s guide Key

1). Perfect Binding2). Double Loop Binding3). Thermal Tape Binding4). Screw Binding5). Coil Binding6). Saddle Stitch Binding

A beginner’s guidA beginner’s guidA beginner’ e Key

1). Perfect Binding2). Double Loop Binding3). Thermal Tape Binding4). Screw Binding5). Coil Binding6). Saddle Stitch Binding

1 2 3

4 5

6

Binding

Bookbinding is the process of physically assembling a book from a number of folded

or unfolded sheets of paper or other material. It usually involves attaching a book

cover to the resulting text-block.

CMYK is a colour model in which all colours are described as a mixture of these four process colours. CMYK is the standard colour

model used in offset printing for full-colour documents. Because printing in this way uses inks of these four basic colours, it is often

called four-colour printing.

The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to

reproduce a broad array of colours. The name of the model comes from the initials of the three additive primary colours, red, green,

and blue. The main purpose of the RGB color model is for the sensing, representation, and display of images in electronic systems.

CMYK

RGB

Standard paper sizes provide a convenient and effi cient means

for the designer. It makes communication between the designer

and the printer much simpler as specifi c format sizes are known

to both parties.

A Sizes

This series of paper sizes is used to print things from posters, to

postcards, magazines and offi ce paper.

B Sizes

B formats are used for printing books with. These sizings are not

as commonly used as A sizes.

C Sizes

Envelopes are the most common format to use C Sizes.

Paper Size

ISO System

In the ISO paper size system, the height-to-width ratio of

all pages is the square root of two (1.4142 : 1). In other

words, the width and the height of a page relate to each

other like the side and the diagonal of a square.

CMYK

Subtractive

RGB

Additive

Ai, PSD, INDD etc: These can only be opened and edited in their own formats and on

their own programmes.

PDF: This is useful for precise layout and signifi cant amount of formatted text. They are

usually quite small in size in comparison to other fi le types and so are often preferred

by print companies, this is because of the image (JPEG) compression.

TIFF: This is an industry standard fi le type designed purely for the handling of bitmap

and raster images.

EPS: This is a format that wraps all artwork in PostScript coding - This

includes both vector and bitmapped artwork. This usually includes a low

resolution preview of the artwork for display purposes.

Saving Documents for Print

Imposition is the arrangement of the pages within a publication and enables the designer

and the printer to communicate more easily about the fi nished appearance.

A throw out is made out of three panels. The fi rst two are the same size as the publication

and the third is slightly smaller. It is bound into the publication as an additional fold out

panel. This panel is slightly smaller than the original two, so that it can be folded in without

being seen.

A gatefold is made up of four panels instead of the three in a throw-out. These are the same

size as the publication. The two fold out pages on either side fold out from the spine. This is

often used in magazines as additional pages.

Imposition