Acrobat Color Support

PDF 문서의 종류에 따라 지원하는 색상도 차이가 있다.

 PDF/X-1a - CMYK, Spot color
 PDF/X-3  - accepts calibrated RGB, CIELAB color
 PDF/X-4  - has the same color management and International Color Consortium(ICC) color specification as PDF/X-3
 PDF/A-1b - converts all colors to either CMYK or RGB