magick-convert

Convert between image formats, scale, join, and create images, and much more.

Convert an image from JPEG to PNG

$ magick convert [path/to/input_image.jpg] [path/to/output_image.png]

Scale an image to 50% of its original size

$ magick convert [path/to/input_image.png] -resize 50% [path/to/output_image.png]

Scale an image keeping the original aspect ratio to a maximum dimension of 640x480

$ magick convert [path/to/input_image.png] -resize 640x480 [path/to/output_image.png]

Scale an image to have a specified file size

$ magick convert [path/to/input_image.png] -define jpeg:extent=512kb [path/to/output_image.jpg]

Vertically/horizontally append images

$ magick convert [path/to/image1.png path/to/image2.png ...] [-append|+append] [path/to/output_image.png]

Create a GIF from a series of images with 100ms delay between them

$ magick convert [path/to/image1.png path/to/image2.png ...] -delay [10] [path/to/animation.gif]

Create an image with nothing but a solid red background

$ magick convert -size [800x600] "xc:[#ff0000]" [path/to/image.png]

Create a favicon from several images of different sizes

$ magick convert [path/to/image1.png path/to/image2.png ...] [path/to/favicon.ico]