Ubuntu – How to easily resize images via command-line

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I would like to know how to resize images in Ubuntu. What is the easiest tool to do so?

Best Answer

You want simple?

Run sudo apt-get install nautilus-image-converter, or click nautilus-image-converter Install nautilus-image-converter.

It adds two context menu items in nautlius so you can right click and choose "Resize Image". (The other is "Rotate Image").

You can do a whole directory of images in one go if you like and you don't even have to open up an application to do so.

You need to restart your nautilus to see new context menus, run nautilus -q and then click the Home folder icon to reload nautilus with the new plug-in.