Whilst all print ready data must be submitted as CMYK artwork we understand that in some cases you may be unable to make the conversion yourself. Working in RGB and then converting to CMYK at the last minute however can result in some large color shifts since the CMYK color gamut is much smaller than RGB. For a 500yen fee per file we are able to convert to CMYK from your RGB files but we do not perform color corrections or adjustments to your file after the conversion.