who should use this work flow?
A pre-separated CMYK work flow is recommended for those who want the
confidence of making CMYK separations for a known printing process and
printing material. Scanners and digital cameras typically deliver color to the
computer in RGB (red, green, blue) format. Converting that original color into
the colors needed for a printing process requires knowledge of the specific
device and its printing material, as CMYK conversion are printer-paper
specific.
If you know the printing device, its colorants and printing material, it is
safe to convert files to CMYK early in production using either an ICC output
(printer) profile, or another means (Photoshop separation tables, for example)
to get CMYK from the original color files.
See converting RGB to CMYK in Adobe Photoshop for
more information.
See also Adobe InDesign mixed RGB/CMYK work
flow.
the work flow
The procedure is as follows:
save photos in Photoshop
Take an image in RGB color from a scanner, digital camera, or other
source.
convert the image with Adobe® Photoshop®
using press profile.
Save the file in CMYK color in TIFF format.
place photos in InDesign
Place images in Adobe® InDesign®.
turn InDesign color management off
Turn color management OFF in Adobe InDesign.
set printing parameters
For the HP Designjet software, in the Print tab of the Default Settings
dialog:
- Select Color Management: Standard Emulation.
- Set the appropriate Media type.
- Set the CMYK ICC input profile to the same profile that was used to convert to CMYK in Photoshop.
- (The output profile is selected automatically by the HP Designjet software.)
- Set the rendering intent to Colorimetric.
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