ImageMagick and GD are software libraries that ought to be present on a server in order for images to show up on a specific internet site. They enable you to execute different tasks with the images - create, flip, resize, change colors, and so forth. These things could be done online and in real time, so if you add a static image, for instance, 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 that the website visitor is using. Both ImageMagick and GD may be used with a lot of web programming languages including PHP, Perl and Python, so you don't need to stick to a single language to create your internet site. They work with over 100 formats, which includes the most popular ones - JPEG, GIF, TIFF, PNG, and so forth.