If you want to have dynamic images on your website, the server in which you host it should have the correct software for that. As an alternative to using static images with a fixed size, you could have thumbnails and automatically resized images depending on the device a website visitor uses or you may even flip and invert images using a script app. All of these things are possible with ImageMagick and GD library - 2 pieces of software which can be set up on a web server and that work with a great number of popular scripting languages such as: Perl, Python and PHP. Thus, you can use images with any web-based app you'd like, regardless of the language it was developed with - a custom-made Perl script or a PHP one. The 2 libraries will enable you to work with over a hundred different image formats like GIF, PNG, TIFF, JPEG, and so forth.