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Adobe Acrobat |
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Plece of software that enables you to edit pdf files |
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Adobe Acrobat Distiller |
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Plece of software that enables you to create pdf files from postscript files. It provides the user
with a host of options to create the pdf as, such as font and image embedding, colour
downsampling etc. |
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Adobe Acrobat Reader |
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Free piece of software that enables you to view pdf files and carry out simple operations.
Known simply as Adobe Reader from version 6 onwards. |
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Against the grain |
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At right angles to the direction of the paper grain |
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Alterations |
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Corrections and/or additions made by the customer in artwork at proof stage |
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Art paper |
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Smooth surfaced paper |
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Artwork |
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The job specification file supplied to the printer and made up of text, illustrations etc.,and
created nowadays using computer software |
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Back up |
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To print on the reverse side of a sheet whose front side has already been printed on. |
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Banding |
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A method of packaging printed material using paper or rubber bands; A defect in the output
of a graduated tint |
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Binding |
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The process of fastening papers together with wire, thread, glue, or by other means |
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Bitmap |
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An image made up of a grid of pixels or printed dots (bits), with the colour of each pixel logged
on a table (map) |
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Blanket |
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A thick rubber-like mat held on a clyinder of a printing machine that transfers the printing image
from the plate to paper |
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Bulls Eye |
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An imperfection in the printing process, created by an object (e.g. a speck of duct) coming between
the paper and the printing surface (e.g. the blanket or plate) |
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CMYK |
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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;
the subtractive primary colours used in four colour printing. |
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Dot Gain or Spread |
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A halftone dot will become larger in the transition from film to print - this has to be planned for
in the reproduction process; A term used to explain the difference in size between the dot on
film v paper - This change is called 'dot gain percentage', as it will always be a plus factor,
ie 30% dot on film, 40% printed dot - this increase is referred to as 10% dot gain. This press
dot gain must be anticipated at the film stage and the film dot size reduced to counteract the percentage gain. This is not a linear change as it varies depending on the original film dot size. |
