To add photos to GIMP, you need to make sure you install it. Visit gimp.org and click to download the latest version. Once you finish with the installation steps, you can use the GIMP image editor on your computer and start designing. If you want to add a picture, here are the steps to do so: • Click on "File" and select "Open." • Locate an image you want to add and click "OK." • In the canvas area, you'll see your image, and you can start editing.