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Continue to ChatQuery : Is converting tiff (CMYK) to png (RGB) and back again lossless? I need to convert a bunch of tiff (CMYK) images to png (RGB) to process them through a certain program, and then convert them https://vmapp.org/query/61252/Re-Is-Converting-Tiff-CMYK-To-Png-RGB-And-Back-Again-Lossless-I-Need-To-Convert-A-Bunch-Of-Tiff-CMYK-Images-To-Png-RGB-To-Process-Them-Through-A-Certain-Program-And-Then-Convert-Them/