Our digital printers use the standard four color print process that most every printing press uses – CMYK, which stands for cyan, magenta, yellow, and black. These four colors are combined to give you the full-color reproduction you expect with printed materials. Monitors and digital images use a different color space called RGB, which stands for red, green, and blue. If you are unfamiliar with color management and are already glazing over, feel free to skip ahead. Blurb’s PDF to Book workflow follows industry standards for digital offset printing and color management. Most customers will receive quality printed results without needing to understand the details around color spaces and color management.
In the PDF to Book workflow, all RGB color spaces are assumed to be sRGB, then converted to CMYK at the HP Indigo print device. Therefore, all CMYK color spaces remain as is and are not converted. Depending on your preferred color space, you’ll want to follow these guidelines for optimal print results:
For optimal results in color reproduction and overall quality, we recommend downloading and installing the Blurb ICC Profile, and then setting up Adobe Photoshop® and InDesign® according to the instructions found under the PDF to Book tab in the Color Management Resource Center.
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