ImageMagick and GD are two of the most widespread graphic software libraries available. They make the dynamic creation and editing of images and graphs on a website possible, so they need to be set up on a server if you host your websites on it and you would like to have something different than static images with fixed dimensions. If ImageMagick and GD are present, you will be able to edit any image in various ways - create thumbnails, change the colors, flip it, blur it, etc. Naturally, these adjustments are doable if the script application that you employ on your internet site permits you to perform such things. The two libraries could be used with numerous website development languages - PHP, Python, Perl, etc., and support over one hundred commonly used image formats which you shall be able to work with - PNG, PSD, JPEG, TIFF, GIF and many more.