This is a supplemental video to “Optimisation for fast web pages”. If you have not watched it, please click here to watch first.
If you have an Adobe Photoshop subscription, it is a much easier way to optimise images, and you do not need this tutorial.
However, using the free programs GIMP and RIOT you can achieve the same results, with not much more effort.
This tutorial shows you where to get these programs, how to install them and how to optimise photos with them.
Note: This tutorial compares the quality of photos before and after optimisation. To get the best value, please view this video in full screen. Also click the gear icon at the bottom right of the video and make sure the quality is set to 1080p