jpegoptim

Optimise JPEG images. More information: https://github.com/tjko/jpegoptim.

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

jpegoptim {{image1.jpeg}} {{image2.jpeg}} {{imageN.jpeg}}

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

jpegoptim --strip-all {{image1.jpeg}} {{image2.jpeg}} {{imageN.jpeg}}

• Force the output images to be progressive:

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

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

jpegoptim --size={{250k}} {{image1.jpeg}} {{image2.jpeg}} {{imageN.jpeg}}