Suppose you’ve just filled you digital camera with an endless stream of photos. You want to place them online at your website, but placing 5+ megapixel files online, well…probably a bad idea. Let’s resize them to a propper size - and why not use Perl and ImageMagick for the job. Not a problem, here’s a complete example on how to resize all images in a directory . Make sure you have ImageMagick installed.