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CMYK display problems
- Thread starter JTS517
- Start date
Simple - your monitor can only display in RGB.
This is why CMYK graphics don't look quite as expected on a computer monitor. Also the screen previews in PM are not as good as those in Photoshop - even when the display is set to high-rez. However, when printed, the CMYK will print just fine, assuming you have remained within the CMYK gamut when converting RGB->CMYK in Photoshop.
One further note - depending on how the PM publication will be printed - commercial offset or a desktop printer - will determine which colour gamut is best. For the former (offset) then CMYK is mandatory. For desktop printer, the colours wil probably look better if left in RGB. This is because the desktop printer 'expects' RGB, and has an internal converter to CMYK. However, if the colours are out of gamut in Photoshop*, you may get some surprises.
*click on a colour in PS with the eyedropper tool and see if the little triangle in the colour palette comes up with an exclamation mark. This indicates it is out of gamut. Adjust the colour sliders unitl the question mark goes away - then your colour will be within the CMYK gamut.
This is why CMYK graphics don't look quite as expected on a computer monitor. Also the screen previews in PM are not as good as those in Photoshop - even when the display is set to high-rez. However, when printed, the CMYK will print just fine, assuming you have remained within the CMYK gamut when converting RGB->CMYK in Photoshop.
One further note - depending on how the PM publication will be printed - commercial offset or a desktop printer - will determine which colour gamut is best. For the former (offset) then CMYK is mandatory. For desktop printer, the colours wil probably look better if left in RGB. This is because the desktop printer 'expects' RGB, and has an internal converter to CMYK. However, if the colours are out of gamut in Photoshop*, you may get some surprises.
*click on a colour in PS with the eyedropper tool and see if the little triangle in the colour palette comes up with an exclamation mark. This indicates it is out of gamut. Adjust the colour sliders unitl the question mark goes away - then your colour will be within the CMYK gamut.
BionicJohn
Technical User
Hi, JTS517,
Lyn's correct - the CMYK gamut does not wholly map across into RGB.
You can try using PM's colour management, but most people make sure it's disabled.
If you wish to experiment with PageMaker's colour management system, these are settings which have been used with success:
Color Management: ON
Monitor Simulates: Composite Printer
New Items Use: Kodak ICC
Kodak ICC Settings:
Monitor: Select the monitor profile you created with Adobe Gamma from Photoshop
Composite Printer: Select the ICC Profile for your desktop printer (if applicable)
Separations Printer: Select the same profile as your Photoshop CMYK setup (SWOP Coated for instance)
RGB Image Source: Same as your Photoshop RGB working space (AdobeRGB for instance)
CMYK Image Source: The same as your Photoshop CMYK setup.
CMYK Images from Photoshop will then appear pretty similar in PageMaker to Photoshop. It doesn’t matter whether you embed profiles when saving from Photoshop as you are telling PageMaker what profiles to assume.
Do NOT embed ICC profiles in greyscale images from Photoshop - this confuses PageMaker’s color management system and can lead to all kinds of problems.
Iechyd da! John
Glannau Mersi, Lloegr.
Lyn's correct - the CMYK gamut does not wholly map across into RGB.
You can try using PM's colour management, but most people make sure it's disabled.
If you wish to experiment with PageMaker's colour management system, these are settings which have been used with success:
Color Management: ON
Monitor Simulates: Composite Printer
New Items Use: Kodak ICC
Kodak ICC Settings:
Monitor: Select the monitor profile you created with Adobe Gamma from Photoshop
Composite Printer: Select the ICC Profile for your desktop printer (if applicable)
Separations Printer: Select the same profile as your Photoshop CMYK setup (SWOP Coated for instance)
RGB Image Source: Same as your Photoshop RGB working space (AdobeRGB for instance)
CMYK Image Source: The same as your Photoshop CMYK setup.
CMYK Images from Photoshop will then appear pretty similar in PageMaker to Photoshop. It doesn’t matter whether you embed profiles when saving from Photoshop as you are telling PageMaker what profiles to assume.
Do NOT embed ICC profiles in greyscale images from Photoshop - this confuses PageMaker’s color management system and can lead to all kinds of problems.
Iechyd da! John
Glannau Mersi, Lloegr.
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