Preview seems to display them ok. If you want to edit them, I suspect GIMP can do that; if course, you'd have to install it.
> On Apr 16, 2024, at 22:44, Kenneth Wolcott <kennethwolc...@gmail.com> wrote: > > Hi; > > what app on a Mac reads/views ppm files? > > I've been looking at some code located on Rosetta Code that involves > ppm files... https://rosettacode.org/wiki/Bitmap/Read_a_PPM_file > > Thanks, > Ken Wolcott >