When a profile is embedded its there to show the recipient what colourspace the file is within. If its your working master (likely an RGB file) then an RGB profile will be embedded.
Whilst working you may (sensibly) choose to softproof
View > Proof Setup > Custom
Choose the CMYK profile that you’ve been told reflects the printing condition.
Select "ink black" to reflect the tonal range of the print better
By all means try 'paper white' as well, but in may cases that may create such a big change that its not always used.
What next?
A:
Save with RGB profie embedded with the knowledge that when its converted to CMYK somewhere down the line, it will withstand that conversion. No superstaurated skies etc.
or
B:
Convert to CMYK (as long as you are sure its THE CORRECT CMYK) and generally its best to embed the CMYK profile.
However, way back when some print companies platesetter RIPs would choke on embedded profiles. So, some users preferred to not embed (ands still do).
BUT that means the file will not always be viewed accurately on screen.
If I was asked to send CMYK with no embedded profile then I would add the ICC profile name to the filename.
I hope this helps
thanks
neil barstow, colourmanagement.net :: adobe forum volunteer
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