Utility to Optimize / Compress JPEG files under Ubuntu Linux - jpegoptim

Jpegoptim can optimize / compress jpeg files. Jpegoptim support lossless optimization, which is based on optimizing the Huffman tables. So called, "lossy" optimization (compression) is done by re-encoding the image using user specified image quality factor.

Jpegoptim Installation:
Open up the terminal and type following command to install Jpegoptim:

sudo apt-get install jpegoptim

Using Jpegoptim:
Its very simple. you can optimize / compress single JPEG / JFIF file or all the JPEG / JFIF files within the folder. Copy all your images or photos into one folder and type the below command by changing into that folder

jpegoptim *.JPG –max=50

For more options on jpegoptim check the man pages.