How to resize an image by pixel or percentage If you need to resize an image to make it bigger or smaller either by pixel size or by percentage then there's an easy way to do it in Windows.

Whether you need to scale an image up or down, or change the aspect ratio, our guide covers how to resize images for Windows, macOS, and ChromeOS.

When it comes to knowing how to resize an image with GIMP, a basic resize is an easy process, as you'd hope. Open up your image in GIMP, click on "Image" along the top menu, then select "Scale ...