Marcin Szafran wrote: >> >> How can I fix this? > check your colour profiles - specially for printer (in most such cases > that is the reason). turn it off and try to create pdf. also check if > your black is cmyk black (c0 m0 y0 k100) and not rgb.
Using the relative colorimetric rendering intent with black-point compensation, RGB (255,255,255) should end up as a CMYK black. Maybe a warm black rather than a pure K black, but still a good solid black. -- Craig Ringer
