I'm including a number of PDF images in my document using
\includegraphics. I'm wondering if there's a way for LaTeX to adjust their color profile, hopefully the same way it can flip images upside down, resize, and crop, as here:
Let me detail a little more my desired outcome, in case there's another way to achieve this:
The images are brightly colored—I'd like to reduce color levels, or possibly render them grayscale, and I'd prefer to not have to do external pre-processing, if this is possible.
I'm using XeTeX.