ImageBoss does compression on the fly.
No need to do anything. By default all images are compressed and cached to ensure optimal user experience to all ImageBoss users. Expect different levels of compression depending of the image format.
ImageBoss analyzes if the user's device supports WebP and automatically delivers the image with WebP format. WebP format can reduce file size up to 60%.
Using ImageBoss Web Library
<img src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=" data-imageboss-src="/examples/02.jpg" data-imageboss-operation="width" width="700" />
Send us a message to support[at]imageboss.me if you have any problems with this.