Illustrator saves a dark overlay to the picture, only viewable in Adobe Acrobat
Dear all
So i have this problem with Illustrator where every file I save as a PDF comes out a little darker. The darknes is only really seen in Adobe Acrobat, and it disappears when i view "Print-production"-> "Show output".
So the trouble is not that my CMYK values change or anything like that, it is only that i worry that my clients would get the wrong impression of the colour of the print design.
An example is this file i made earlier:
PDF file before opening in Illustrator viewed in Acrobat Pro DC

Same file after opening in Illustrator and saving again as PDF and viewed with Acrobat Pro DC

Same file aften opening in Illustrator, saving again as PDF but viewed with the setting "Show output"

I also made the original file with Illustrator a couple of months ago but i really don't know what happened.
