I have some printers that are receiving the error message “Object in DeviceRGB Color Space” on a file I have prepared for them and I’m not sure what to do. It’s a large illustrated ad, with assets built in Illustrator and the final layout built in InDesign. I saved and exported it to them as a PDF/X1a and thought that would be fine.
They sent back a message advising that I convert it to CMYK which I’ve done, and did before I sent it to them in the first place. I have never received this error message before in preflight and I’m confused by how to fix it. I can provide further context if need be! Any help would be great!