Resize Images in Linux with ImageMagick

ImageMagick is a free utility that is installed by default in many Linux distributions. It provides a command line interface to perform a multitude of image manipulation operations. In this post I'll show how to resize an image.

There are two different commands that can resize an image; mogrify and convert. mogrify will make changes to the existing image. convert will make the changes and write them to a new image.

Say you have an image called test.png that you want to shrink to half size. You can shrink it from the command line with the mogrify command:

Similarly, you can double it's size with:

Now if you want to keep your original image intact, you can use the convert command instead.

or

Comments

One Response to “Resize Images in Linux with ImageMagick”

1. Tabish says:

   November 4, 2011 at 2:11 AM

   There is a utility which allows you to do this resizing by simply dragging and dropping your images on an icon:
   http://tabish.freeshell.org/picture-resize.html

   Reply