If you want to have dynamic images on your website, the server in which you host it needs to have the appropriate software for that. As an alternative to using static images with a fixed size, you can have thumbnails and automatically resized images based on the device a site visitor uses or you may even flip and invert images using a script application. All these things are feasible with ImageMagick and GD library - 2 pieces of software that could be set up on a server and that work with a great number of widely used scripting languages including: Perl, Python and PHP. That way, you can use images with any web-based application that you'd like, no matter what language it was designed with - a custom-made Perl script or a PHP one. The 2 libraries shall allow you to work with more than one hundred different image formats including GIF, PNG, TIFF, JPEG, and so forth.