PeachPDF
PeachPDF.ColorOptions
ColorOptions.BlackGeneration Property
How an achromatic (gray, including pure black) RGB-authored color is represented when it must become CMYK - under X1a today, since that level rejects chromatic RGB outright but would otherwise reject every un-set default text/border color too (the UA stylesheet’s colors are RGB). Defaults to UseTrueBlack. An achromatic value has an exact, lossless ink mapping either way (unlike a chromatic color, which needs a real color-managed conversion - see ConversionMode) - this specific mapping is not an approximation, and is independent of ConversionMode/ RenderingIntent (it never goes through PeachImage’s ICC engine).
public PeachPDF.ColorBlackGeneration BlackGeneration { get; set; }