pdfSetEmbedOutputProfile
Control embedding of ICC profile in output image.
void pdfSetEmbedOutputProfile(PDFHandle pdf, int embed)
If this flag is set to non-zero, the current gray/RGB/CMYK output
profile will be embedded in the generated image file. This is
supported for PNG, TIFF, and JPEG output.
The pdfResetBitmapParams function resets the rotation to its
default value of 0.
C:
pdfSetEmbedOutputProfile(pdf, 1);