Hints and TipsConsult with National Capital Printing First
Please don't hesitate to contact the pre-press department at NCP before starting production. We can
help with some of the decisions which need to made early in the
design stages, which can save headaches and wasted plates at output
time. Check out resolutions, line screens, tint percentages etc.
relative to the process and papers which will be used.
Match Document Page to Size to Finished Trim Size
Let the application create crop marks and regos. If
bleeds are needed, they should be 5 mm outside the main page area.
PDFs should be saved at bleed size - i.e. with bleeds visible on
screen. Please don't impose the job within the layout program, we
have imposition software which can handle it quicker and more accurately.
Don't Modify Images
Ideally, all images should be placed into the document
at 100%. Scaling, flipping or rotation of images should be done
within the painting or drawing application. Resolution for line
work (bitmaps) should be 1200 dpi, and for greyscale or colour images
300 dpi. Do not use picture styles within applications to change
contrast etc. These styles will be deleted during Postscript creation.
QuarkXpress "fake duotones" (greyscale over colour background)
will not work correctly. Create duotones in Photoshop.
Simplify EPS Graphics
Complicated Postscript paths can prevent graphic images
from printing correctly. Paths should not have too many control
points. Split complicated paths or use "Simplify Paths"
command. Flatness setting should never be used, and should be set
to default or left blank. Don't nest (place) EPS graphics within
other EPS images.
Vignettes, Gradients and Blends
Postscript blends and vignettes are only acceptable
when kept small (100 mm long max.). Larger vignettes are better
created in Photoshop with Add Noise used to eliminate banding. If
gradients are created in Illustrator, select "Compatible Gradient
Printing" in Document Setup before saving to overcome an Illustrator
bug when creating Postscript files.
Fonts
Please supply all Screen and Printer fonts (Font Suitcase
and Postscript Font). Avoid using Truetype fonts. They often conflict
with other fonts and give unpredictable results when output at imagesetter
resolutions (up to 4000 dpi). Don't use style com mands for Bold,
Italic, Bold Italic etc. unless absolutely certain that there is
a printer font for the variation. Even though it will appear correct
on screen, it will not print correctly at the imagesetter unless
a printer font is available. Outline and Outline Shadow type in
Quark Xpress will not usually print as expected.
Trapping
Please don't apply any trapping to files to be output.
The trapping in page layout programs is very unreliable, and may
not match our press requirements. We will trap the files whenever
necessary.
Colours
Please ensure that spot colour names in drawing programs
match those used in page layout programs. Clearly mark spot or process
colours and supply separated lasers to ensure colours are printed
as required. DO NOT change Pantone CMYK values, if a different
colour is required, create a new colour.
Problem Files
If you have had any problems printing your job PLEASE
LET US KNOW. It can save us all a lot of wasted time and
effort.
Andrew Brien
Martin Davies
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