pdfEnableColorManagement

Enable or disable color management for one document.
void pdfEnableColorManagement(PDFHandle pdf, int on)
Enables (if on=1) or disables (if on=0) color management for a single PDF file. This overrides the global xpdfrc setting.
C:
pdfEnableColorManagement(pdf, 1);
pdfSetGrayOutputProfile
pdfSetRGBOutputProfile
pdfSetCMYKOutputProfile