Sony DVD Rom/DVD Video - Manual (Page 35)

5.4.5 Colours
Used colours must always be CMYK and/or Pantone
colours.
You must not use RGB, Focoltone or even Pantone
Process, Prosim, Uncoated, etc.
Data should always include a reference to compare
with. When no laserprint, colour proof or digital soft
proof in PDF format is forwarded, be aware that DADC
has no tools to compare the final results to the deli-
vered artwork.
Printer Descriptions or PDs
Several functions on scanners and DTP software are
related to the characteristics of the final printing
machine, these are called PDs.
For now the world makes use of films which are used to
create printing plates for the printing machines.
All these PDs are related to the film, printing plate etc.
Now all these technologies are changing, so all our
work should be independent of these technologies.
What functions are in fact PDs?
Trapping
Trapping (Spread and Choke) is used because the now
used printing technology has problems with getting all
printing colours exactly in place.
UCR and PCR
UCR (Under Colour Removal) is used for getting
brighter colours with less ink, PCR is a more sophisti-
cated technology as UCR but has the same principle.
Black overprint
When putting a black text over a coloured background,
especially small fonts should not be cut out of the
background. This is called black overprint.
WARNING:
All these PDs should not be the concern of an Art
Director, but of the one who is actually making the print
work, so:
DO NOT MAKE USE OF THESE FUNCTIONS
Do not use trapping, unsharp masking, UCR or PCR,
only black overprint of small texts is OK.
DADC will take care of the quality of your labels.
5.4.6 Templates
Always make use of the Sony DADC templates. These
templates are conform with the final measurements of
all labels which are printed at DADC.
Templates for CD-labels as well as for packaging art-
work can be downloaded from our internet homepage
www.sonydadc.com.
Packaging artwork must be printers pairs for saddle
stitched booklets and single pages for perfect bound
booklets.
Please make sure that you never change the measure-
ments or the template descriptions, because this will
generate major problems for the final product.
5.4.7 Overview of the
most common
problems
• Fonts are not delivered with the files.
• Not standard file format (see 'IMAGES')
• Images in the quark document. have other names
than the original image
• Images are saved with JPEG compression
• Images with the wrong resolution (low)
• Images and logo's are not delivered
• Images are RGB instead of CMYK or Pantone
• There was no standard software used
• Wrong specifications used
5.4.8 Tipp
Please always check your outgoing files and docu-
ments, because errors often occur while copying files
and documents from one digital carrier (desktop) to
another!
5. Ser
vices