We had a client provide files that have "Unknown Output Condition" in the simulation Profile window. The images looks TOTALLY different when toggling between the Separations mode and the Color Warnings/Object Inspector modes.
What is the benefit to creating files without profiles? Basically device dependent files when the final device is unknown (as this client send these PDFs to different vendors).
One reason for not including profiles is that you don't want the profile-to-profile conversion that takes place, which will typically change black to rich black and other things. For some applications colour fidelity is less important than colorant fidelity. But of course, mostly its people who don't have a clue about colour.
Or, just an incompatible view of the workflow. Some people are using rather old fashioned colour workflows where output intents are ignored. If you have one of these workflows, then a good colour managed file following best practice appears to have only device dependent colours.
HOWEVER, I've never seen "Unknown output condition" in the Simulation profile selection. This is supposed to be a profile of your choice - but perhaps this file is a PDF/X file with an unrecognised output condition. Anyway, I certainly don't see it as a suggestion that the file doesn't have profiles. Well worth looking further into these files. Have you preflighted them? Are they PDF/X and if so what sort of PDF/X?
"HOWEVER, I've never seen "Unknown output condition" in the Simulation profile selection. This is supposed to be a profile of your choice - but perhaps this file is a PDF/X file with an unrecognised output condition. Anyway, I certainly don't see it as a suggestion that the file doesn't have profiles. Well worth looking further into these files. Have you preflighted them? Are they PDF/X and if so what sort of PDF/X?"
I have preflighted the file and it does not look to be PDF/X compliant.
The client could possibly want (expect?) us to attach a profile of our choice, but the workflow is to import the file directly into the RIP, which does not have the ability to attach a profile.
IF the 'Separations' preview is what this file is supposed to look like, it does not look good.
Then the conversion from a non-profiled color (device dependent) to BW is not a good one.
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