On Sat, Sep 24, 2022 at 03:17:31PM +0200, hede wrote: > Am 21.09.2022 14:46, schrieb Emanuel Berg: > > Maybe related to the '-o f f' part as your imagination > > tells you ... > > The "-o" means: "Write output image to FILE". And it does so, as far as I > can see.
The question is whether specifying "-o f f" where the output file has the same name as the input file actually overwrites the original input file. Another person reported that it does *not* -- that you get a *.modified.jpeg file as output instead. If I had the first inkling of a clue what an exif tag actually *was* I might try testing it myself. I'm gathering that it has something to do with JPEG images, based on the *.modified.jpeg default output filename. Beyond that, I know nothing. One of you people who knows this software and has a testable input file should (please!) try it, and show us the results. Make an empty directory. Copy the JPEG file into it. Show "ls -l" output. Run the exif command. Show "ls -l" again.
