AV1 can also encode RGB color space. Such usage would probably be more prevalent in the still image use case.
Re:AVIF – AV1 based image format
by ComputerGuru on Tuesday April 10, 2018 @10:59PM
(#16807696)
Actually I munged two issues. CMYK is for print but DPI is for retina images.
If you want to print, PDF is probably still your best bet.