Package: libjpeg-turbo-progs jpegexiforient silently does nothing on files that don't contain exif tags. I'd be great if it could create them when called in set mode. (But if it is a deliberate decision not to do so, at least it should inform about the failure, and maybe give hints.)
I reported this bug at libjpeg-turbo upstream on github [1] but it seems to be the wrong place. As it is unclear to me where the code is actually coming from *, I am reporting here so that it can be forwarded to the appropriate upstream project. (* btw, libjpeg-turbo-progs's `Homepage` field seems to be wrong, then.) Thanks, Marian [1] https://github.com/libjpeg-turbo/libjpeg-turbo/issues/494

