When you supply a PDF for printing to Jukebox in RGB and receive your PDF proof back in CMYK, the colors may look different. This happens because RGB and CMYK are two different color modes, and they use different color values to represent colors.
RGB is used for digital displays such as computer monitors, phones, and tablets. It stands for Red, Green, and Blue, and these colors are mixed to create all other colors. RGB has a wider range of colors and can produce brighter, more vibrant hues.
CMYK, on the other hand, is used for printing. It stands for Cyan, Magenta, Yellow, and Key (black), and these colors are mixed to create all other colors. CMYK has a smaller range of colors and is better suited for printing because it is closer to the range of colors that can be produced by ink on paper.
When you supply a PDF in RGB, we need to convert the colors to CMYK to ensure that they are accurately reproduced on the printed product. This color conversion can cause some colors to shift or look different than they did in RGB. For example, bright neon colors may not be possible to print in CMYK and may appear duller or different shades altogether.
To correct this issue, it is important to design your artwork in CMYK from the beginning. This will ensure that the colors you see on your computer screen will be more accurate to what will be printed. Additionally, you can use color swatches or a color chart to select colors that are within the CMYK color gamut.
We take care of the color conversion for you, which means that the PDF proof you receive will be an accurate representation of what will be printed. Our team will convert the colors in your artwork to CMYK and ensure that they fall within the printable range of colors. However, it's essential to design your artwork in CMYK from the start to avoid any possible color changes. If you plan to export a PDF by yourself, make sure to choose CMYK and select the "U.S. Sheetfed Coated v2" color profile.
Also see: How to view a proof to ensure you are viewing the proof correctly.