How to resize images from the console

Posted on December 10, 2019

We can resize our images from the command line using convert command from imagemagick. Install it if you dont have imagemagick:

sudo apt-get update
sudo apt-get install imagemagick -y

To resize an image with maximun width 800 pixels and maximun height 600 pixels but keeping the aspect ratio:

convert image.png -resize 800x600 resized.png

To get the resolution of an image:

identify -format "%wx%h" resized.png