ImageMagick - Resize to max width

php imagemagick image-manipulation
Brett picture Brett · Dec 5, 2011 · Viewed 13.9k times · Source

I want to resize an image to a max width. So I don't care about the height of the image, but I just want to always resize it to a specific width.

I'm certain I've done this before I just can't remember how I did it now.

Answer

Brett picture Brett · Dec 6, 2011

Seems this is the way it is done, noting that width is the first parameter.

convert -resize '100' image.png

For anyone else wondering about height, then you would do this:

convert -resize 'x100' image.png

Source: http://www.imagemagick.org/script/command-line-processing.php

Edit (Nov 2014): Note that in the latest versions of ImageMagick you can no longer use quotes around the values as per Kevin Labécot's comment.

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