Hello @hyungsongnam. I see this behavior when the image I'm saving doesn't have a profile currently associated with it. It would make sense at this point for this option to be off and not able to be turned on since there is no profile set to be saved into the file. Can you double-check to see if the file you are trying to save has a profile? There are several ways to do this:
1. In the document tab (at the top of the document window, where it lists the document name, color mode, bit-depth, etc)
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