jpegoptim

Optimise JPEG images. More information: https://manned.org/jpegoptim.

• Optimise a set of JPEG images, retaining all associated data:

jpegoptim {{image1.jpeg image2.jpeg image3.jpeg ...}}

• Optimise JPEG images, stripping all non-essential data:

jpegoptim {{[-s|--strip-all]}} {{image1.jpeg image2.jpeg image3.jpeg ...}}

• Force the output images to be progressive:

jpegoptim --all-progressive {{image1.jpeg image2.jpeg image3.jpeg ...}}

• Force the output images to have a fixed maximum filesize:

jpegoptim {{[-S|--size]}} {{250k}} {{image1.jpeg image2.jpeg image3.jpeg ...}}