Compress a JPG
Save it again at a lower quality. sips ships with the system and takes a quality from 0 to 100; around 60 is hard to tell apart and often half the file.
How
Save a smaller copy at quality 60:
sips -s formatOptions 60 photo.jpg --out photo-small.jpgCompare the two sizes:
ls -lh photo.jpg photo-small.jpgLower quality throws detail away for good, so write to a new file and keep the original. To make it smaller in pixels too, see resizing images.
Or just ask Titan
Make this photo small enough to email.Do it with Titan
Titan is an AI that lives on your computer: tell it what you need and it does it while you watch — you press Return, nothing runs by itself. What is Titan?
Titan isn’t on this computer yet. Get Titan, then press the button again — the task will be waiting, typed in.