It is important to make sure all images that you work on have an embedded profile. Photoshop has a colour settings panel that determines how the software will colour manage your files. At Metro we use settings common throughout the photographic industry.
This short guide walks you through setting up your Photoshop software so that you are colour managing your files in the same workspace as the lab.
1. In Photoshop go to Edit > Colour Settings
2. In Settings choose Custom from the drop down menu.
3. In Working Spaces for RGB choose Adobe RGB (1998) for CMYK choose US Web Coated (SWOP) v2.
4. If you would like to check the profile of a file you can always see it at the bottom of the document.