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provides for automatic replacement of low-resolution placeholder images
with high-resolution images.
Overprint When printing a shape or type in colour, the shape prints over whatever
colours have already been printed. This can result in a shift of colour
due to overlapping ink or toner.
Page One side of a sheet of paper. Both together are called a sheet or leaf.
Page description
language A programming language used to describe how type and graphics should
be produced on a printer.
Pages per minute The term most commonly used with digital printing for measuring print
speed.
Pantone The common name for most widely used colour specification system for
special colours. It is a registered name of an ink colour.
PDF Short for Portable Document Format.
PDL Short for page description language.
Perfect To print both sides of a piece of paper in one pass through a printing
press.
Perfect binding Signatures bound together with an adhesive applied to the document’s
spine.
Personalisation A form of variable information printing. A document that is tailored to a
specific individual. Variables could include text, images or other
information. See customisation, versioning.
PICT A graphic file format used on Macintosh computers.
Pixel Short for “picture element". The basic units of digital imaging, it is the
smallest point of a raster image.
PMS Short for Pantone Matching System. A commercial system of spot colours
as distinct from CMYK or process colours.
Portable Document
Format A file format modelled on PostScript that allows easy transfer between
computers and to printers.
Postpress All operations in the print production process that take place after a job
is printed that are required to deliver a finished product to the
customer. This can include trimming, folding, binding, packing and
delivery.
PostScript A page description language that is the industry standard for high
quality printing.
ppi Short for pixels per inch. A measurement used when scanning images
and when images are displayed on a monitor.
ppm Short for pages per minute.
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glossary