Hi, mac_heibu,
first, sorry for the cursing. I was really frustrated yesterday evening.
I tried with:
- all pictures and graphics in an RGB/8 (sRGB IEC61966-2.1) colourspace and colour profile, the same goes for the document. I then exported this as an PDF in RGB and in CMYK, not working, both have the red tint in it.
- all pictures in CMYK/8 with Coated FOGRA27 (ISO 12647-2:2004), same results.
It seems like the problem itself is in the software (Affinity Designer, Photo and Publisher) but I don't seem to get, why that is.... I even considered playing around with the colour profile of my monitor, but as this monitor is a gaming, and not a graphics montior, I'd rather not change anything on my monitor software ...
Nothing seems to change when I export to PDF...
I even tried to export one page as an TIFF, in RGB, when I look at the picture out of Affinity, it got the red tint ... when opening in Affinity Photo the red tint is gone ...