ImageMagick and GD are software libraries that need to be present on a web server to enable images to show up on a certain site. They allow you to execute a variety of tasks with the images - create, flip, resize, change colors, and so forth. These things can certainly be carried out online and in real time, so if you add a static image, for example, the libraries make it possible for a thumbnail to show up on the internet site or for the image to be resized automatically based on the device and resolution the visitor is using. Both ImageMagick and GD may be used with various web programming languages such as PHP, Perl and Python, so you don't have to stick to one particular language to develop your website. They work with over 100 formats, which includes the most widespread ones - JPEG, GIF, TIFF, PNG, and so on.