You could also try sips, which I think has been around as part of the base MacOS install since 10.3:
sips -s format png [input file].ppm -out [output file].png Best, -ranga > On Jun 20, 2024, at 8:00 PM, Kenneth Wolcott <[email protected]> wrote: > > Thank you! > > On Thu, Jun 20, 2024 at 7:02 PM Richard L. Hamilton <[email protected]> wrote: >> >> netpbm port contains pnmtopng, a command line tool. >> >> >>> On Jun 20, 2024, at 21:44, Kenneth Wolcott <[email protected]> wrote: >>> >>> Hi; >>> >>> is there a MacPorts port that converts ppm files to png format? >>> >>> If not, is there an open source tool that does this? >>> >>> Is there a free MacOS tool that does this? >>> >>> I don't want to use an on-line tool and I don't want to pay for such a tool. >>> >>> Thanks, >>> Ken Wolcott >>> >>
