thx @sebobo for your tipp.
In my development environment I’ve got:
- ImageMagick V 6.9.10-23
- Ghostscript V 9.5
and here is everything fine.
In my Live environment I’ve got:
- ImageMagick V 6.9.10-68
- Ghostscript V 9.25
and here are the wrong colors. Ghostscript is older but there is no newer version for this operating system.
Interesting is that there are several TYPO3 systems as well on the Live server, that don’t have this problem. I tested it with the same PDF. But all NEOS system do have the problem.
Is there a place where I can adapt settings for ImageMagick and Ghostscript?