Command-line Tools: Convert

Overview

This guide covers essential image processing operations using ImageMagick, a collection of command-line tools that can be applied to modify and manipulate images. With this toolkit, you can edit images in batch on Linux command-line.

Image Operations

Use the convert command to resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.

Example Usage We list a few examples of the command here to illustrate its usefulness and ease of use. To get started, let's reduce the size of our rose:

convert -resize 50% rose.jpg

You can resize all your JPEG images in a folder to a maximum dimension of 256x256 with this command: