Help is here.

Please select the product you are interested in.

1. In the design studio, click Images from the left toolbar.
2. Click Upload.
3. Click Upload Image.
4. Select an image and click Open.

Alternatively, you can upload an image to replace a placeholder:

1. In the design studio, click on the gray image placeholder with the text, Upload Your Design.
2. A pop-up opens, click Upload logo or image.
3. Select an image and click Open.

Note: be sure your image is in a supported file type.