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ABOUT COLOUR
CONVERTING TO CMYK
for bestfb
Your computer, scanner, digital camera and monitor create
results when
images using combinations of just three colours: Red, Green and
Blue (RGB). Printing presses use four different colours to print these
choosing
images – Cyan (light blue), Magenta (pinky red), Yellow and Black (or
colours, we
CMYK – also known as Process Colour). At some stage of production,
strongly
RGB images and colours must be converted to CMYK.
recommend you
choose your
Conversions on images from RGB to CMYK are best done using software
colours from
such as Photoshop and you should do this before sending your fi le to
our colour
us. If you don’t perform the conversion yourself, our process will apply
an industry standard profi le RGB to CMYK conversion meaning that
charts
colours may not print as expected. See page 28 for more information on
working with photographs.
Traditional printers often use Pantone
®
Spot colours when printing
work. Spot colours are mixed like paint and printed one at a time. As
we use Process CMYK Colour, all Pantone
®
Spot colours must be
changed to ‘process colour’ and converted to their CMYK equivalent,
before your fi le is sent to us. Specifying conversion to process colours at
the print stage will not meet with our requirements.
If you don’t convert spot
colours to process, then an
extra separation printing
plate may be produced
when we process your job.
This means objects may
not appear on your printed
job and may result in you
incurring unnecessary costs
and time delays.
20
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