ImageMagick and GD are software libraries that should be present on a server to enable images to show up on a specific website. They enable you to carry out different tasks with the images - create, flip, resize, change colors, etcetera. These things could be done 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 that the visitor is using. Both ImageMagick and GD can be employed with various web programming languages including PHP, Perl and Python, so you do not need to stick to a single language to develop your internet site. They work with more than one hundred formats, including the most popular ones - JPEG, GIF, TIFF, PNG, and so forth.