I’m not a command line expert, but I’m so tired of spending entire minutes trying to figure out how to resize an image before uploading it somewhere that I was willing to learn this one command line trick.
Prerequisites
- This command is based on ImageMagick, which was preinstalled on my Linux Mint computer and might need to be installed on other systems.
- You need to know how to open terminal.
- You need to know how to navigate files and get the path of a file. (This can be done in terminal, or by right-clicking an image and copying its path.)
Steps
Grab the image’s path. Make a copy if you want to keep the original.
Open your terminal.
Type:
mogrify -resize widthxheight pathwithextension.jpg
This will replace your old image with the resized one.
Examples
Resize an image to 300×200:
mogrify -resize 300x200 thisimage.png
Resize an image to a width of 1920, keeping height proportional:
mogrify -resize 1920 thisimage.jpg
👍
Azaliz
