How to Prepare CMYK Files for Professional Printing

Color management is one of the most important parts of preparing print-ready artwork.

Designers typically work with two main color systems:

RGB: Red, Green, Blue

RGB is an additive color system used by digital screens, monitors, phones, and televisions. It creates colors using light.

CMYK: Cyan, Magenta, Yellow, Black

CMYK is a subtractive color system used in conventional four-color printing. It creates colors using combinations of printing inks.

Why should designers use CMYK?

Colors displayed on a monitor can look different when printed because screens produce light while printed products reflect light.

Some very bright RGB colors cannot be reproduced within the printable CMYK color range. When converted, they may appear less saturated or change in appearance.

For more predictable results:

Set up your document using the required CMYK workflow.
Convert RGB artwork and images according to the printer's specifications.
Check colors after conversion.
Avoid unnecessary repeated color conversions.
Export the PDF using the required settings.

StationeryHQ's general file setup guidelines require spot, RGB, and PMS colors to be converted to CMYK before creating the submitted PDF. They also specify removing ICC profiles for that general PDF/X-1a workflow. <Cite refs={["turn853941search0","turn853941search2"]}/>

What about Pantone colors?

Pantone colors are often used in branding to specify particular colors. However, a Pantone color does not necessarily reproduce identically when converted to CMYK.

If your design uses a specific brand color, confirm how it should be handled for the selected product and printing process.

Do not assume that specifying a Pantone color guarantees a spot-color ink will be used.