glossary
| provides for automatic replacement of |
| with |
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. |
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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