Optimize your page speed by compressing pictures.Yes,if you are using WordPress CMS you may have some plug ins to compress your images. Today I am not going to write about the available plug ins which can reduce the image size.
The same job can be done offline and this software very useful for both CMS and website just with normal template. The software I use is called Caesium, is an open source software and can reduce your image size up to 90% without losing picture quality. Its amazing software, I have been using last 4 months and forget about other image compressing methods.
Caesium has different output format including .jpg,.bmp,.png etc. Beside this it works fast and compresses all pictures instant. You can customize compress quality from 1% to 100% as you wish. There is also resize option and preview mode before final compressing.
Download : Caesium Software
You can always get help from their official website. You can check update from help menu and Caesium version from about section which is located under help menu.