Guetzli is a Google program to optimize JPEG images. Unfortunately, it only works one file at a time. With this script in Python you can do it recursively a whole folder. # Install Guetzli must be installed on your system. Follow the official instructions. [Guetzli](https://github.com/google/guetzli) and Python 3. # Use ```bash python guetzli-recursively.py [folder] ``` Example ```bash python guetzli-recursively.py img ``` ## out ```bash img/tasks.jpg Save 6% img/portfolio/idecrea/space.jpg It is not necessary to optimize img/portfolio/home.jpg Save 3% img/master.jpg ```