I am wondering about how Adobe Acrobat DC can recognize all Apple's fonts registered in Font Book.
In this case I am talking about the font Helvetica Neue. That one he see's in Acrobat but not all the sub fonts like "thin", "medium" etc...
It looks like he only recoqnize the family font but not the sub fonts.
Anyone else has this problem too?
This is a known issue with TrueType collection fonts on the Mac. Currently, there is no answer to this.
But one of the first topics started in 2018. I am confused this matter has not been fixed.
Mac OS or iOS? It can't be both !!
MacOS, you are right. Sorry.
Not all problems will be fixed. Acrobat is a very basic editor, maybe you are trying to do advanced editing. This will hit many painful issues, and should never be done.
If it makes you feel any better, these .ttc fonts also cause similar issues in other programs, including Office apps.
e.g. Avenir with 12 styles is another one that's problematic.