ImageMagick and GD are software libraries that ought to be present on a web server in order for images to appear on a particular internet site. They permit you to perform different tasks with the images - create, flip, resize, change colors, and so on. These things could be carried out online and in real time, so if you include a static image, for example, the libraries make it possible for a thumbnail to show up on the website or for the image to be resized automatically depending upon the device and resolution the website visitor is using. Both ImageMagick and GD may be used with lots of web programming languages including PHP, Perl and Python, so you do not have to stick to just one language to create your internet site. They work with more than 100 formats, including the most widely used ones - JPEG, GIF, TIFF, PNG, etc.