CMYK output can be achieved via several methods:
DocRaptor supports CSS CMYK colors and CMYK images. If you use CMYK colors and images, you will have print-ready document published.
The document will be converted to CMYK if you set prince_options[profile] to
PDF/X-1aand define your output intent with CSS such as:
More details on DocRaptor's color management functionality are available on Prince's, our PDF engine partner, website.