You can, but it’s not straightforward. Try loading the image into a note, take the image url it creates, load the image url into the DM. Then send. It’s a workaround.
nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s is there a better way?
#OnlyNostr with #DamusPurple