Costco wants the JPG files as sRGB.
You can download the ICC files for Costco's printers from http://www.costcophotocenter.com so that you can soft-proof your images.
Costco wants the JPG files as sRGB.
You can download the ICC files for Costco's printers from http://www.costcophotocenter.com so that you can soft-proof your images.