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If a deviceRGB image is lying completely outside of trim and bleed, and the PDF/X output intent is set to CMYK, should a preflight flag this as an error according to ISO1590-7:2010 or not? I have tools that currently do this. If I read chapter 18.104.22.168 of ISO 15930-7:2010, I'm not really sure that is what these preflight app's should do:
Device colour spaces may be used for print elements only if:
⎯ they match the space specified in the PDF/X output intent; or
⎯ the PDF/X output intent specifies a CMYK print characterization, and the device colour space is DeviceGray.
All input to help me solve this puzzle is more than welcome.