Packing: In lithography, the paper used under
a blanket or plate to increase the squeeze pressure on a press.
Page Make Up: The assembly of all elements to
make up a page. Either mechanically or electronically.
Pagination: The assignment of page numbers,
either manually or electronically.
Pair-kerning: Automatically kerning selected
pairs of characters when they would otherwise be spaced too close
or far apart.
Palette: The collection of colors, shades, or
patterns that can be selected and displayed on a video screen
with the aid of a computer and a graphics program.
PANTONE Colors: A color system of over 1200
colors developed by Pantone, Inc.
Photoshop: A software program developed by
Adobe Systems, Inc. for the manipulation of photographs and
Pica: Unit of measure used in typography and
graphic design. Approximately 1/6 inch.
PICT: A file format developed by Apple
Computer, Inc. A format adequate for storing and displaying data
up to 72dpi but not sophisticated enough for higher-quality work.
Pin Register: The use of accurately
positioned holes and special pins used on copy film, plates and
printing presses to insure proper registration.
Pixel: An acronym for Picture Element. when
an image is defined by many tiny dots.
Pixelate: When a raster image is manipulated
by enlarging or reducing out of proportion. The computer
interprets the image as close as it can. One effect is blurring
of a photograph. Can be used as a creative effect.
Plate: A sheet of aluminum or polyester that
carries an image to be printed.
Plot: To use vector graphics, which is to
draw images with straight lines rather than dots. To create an
image as a mathematical function as opposed to approximating
PMS: Pantone Matching System. A palette of
spot colors based on the Pantone System that are assigned
Point: Unit of measure in typography,
approximately 1/72 inch. There are 12 points in a pica.
Portrait: A page those width is shorter then
is height. Opposite of landscape.
Positive: A film or print in which the light
and dark values are the same as the original. The opposite of a
Postscript: A page definition language (PDL)
developed by Adobe Systems. A file saved as Postscript is a file
that contains all of the information about that file including
typefaces, images, measurement and graphic shapes. It contains
all of the information necessary for output.
PPD File: Postscript Printer Description
file. A file that contains information on screen angle,
resolution, page size and device-specific information for a file
to be printed. It is used when a file is output to postscript.
Prepress: The preparation work required to
camera-ready art or a digital file into printing plates.
Press Proofs: A proof that is done on the
press using the inks and paper the job is to be produced on. A
final proof before the job is produced.
Press Sheet: A printed sheet before and
bindery has occurred.
Primary Colors: Additive primaries are red,
blue and green. The subtractive primaries are cyan, magenta,
Print Quality: In paper, the properties of
the paper that affect its appearance and the quality of the
Process Colors: Cyan, Magenta, Yellow and
Black. (CMYK) The primary subtractive colors used to re-create
full color images in lithography.
Progressive Proofs: (Progs) Proofs made from
separate plates in process work. Usually during a press proof.
Proportional Leading: A method of leading in
which two-thirds of the leading space is above the text baseline
and one-third is below the baseline.