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CMYK
Acronym for
"Cyan, Magenta,
Yellow, black"
-- the ink
colors commonly
used by
professional
printing
companies to
compose
full-color
printed
materials. CMYK
is also used
with many inkjet
printers for
home and
business
applications.
EPS
Acronym for
"Encapsulated
PostScript" -- a
file format
developed by
Adobe Systems
which can
contain vector
or bitmap art,
or both. EPS can
be used for
commercial
printing and can
contain any
color mode. EPS
provides the
most accurate
color fidelity
of all formats.
File size
typically is
triple that of a
compressed TIFF
and many times
that of a JPEG.
FreeHand
A popular
vector-based
drawing program.
GIF
Acronym for
"Graphic
Interchange
Format" -- a
file format in
index mode used
mainly on the
Internet.
Contains up to
256 colors.
Usually
considered
low-resolution
and unfit for
commercial
printing.
Grayscale Mode
A file format
containing up to
256 shades of
gray but no
color. Grayscale
can be used for
on-screen and
commercial
printing
applications.
Illustrator
Industry
standard
vector-based
drawing program
from Adobe
Systems.
Index Color Mode
An image in
index mode
contains 256
different
colors, each of
which is
assigned to its
own numbered
slot on a
palette. Same
file size as
grayscale mode,
but usually
considered
low-resolution
and unfit for
commercial
printing.
JPEG
Acronym for
"Joint
Photographic
Experts Group."
Describes a
method for
compressing
images that's
compatible with
most computer
platforms but
which results in
a loss of pixels
each time the
image is saved
(a condition
referred to as "lossy
compression").
Frequently used
for Internet
images, but
generally
considered
low-resolution
and unfit for
commercial
printing unless
successfully
converted to
TIFF or EPS file
with
sufficiently
high resolution.
Requires RGB
color mode for
Web display, but
can support CMYK
mode for other
uses.
Photoshop
Industry
standard image
editing program
from Adobe
Systems.
QuarkXPress
Industry
standard page
layout program.
RGB
Acronym for
"Red, Green,
Blue" -- the
phosphors on a
computer monitor
or television
screen which
create the
images you see.
TIFF
Acronym for
"Tagged Image
File Format" --
one of the most
widely accepted
cross-platform
formats (i.e.,
works with both
Macintosh and
Windows
environments).
Can contain any
color mode and
can be
compressed
without pixel
loss using
Photoshop's LZW
compression
capability.
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