Documentation:Customizing Theme Headers in WordPress
One way of customizing your WordPress site is by customizing the theme header.
- From the Dashboard, under the Appearance drop-down menu, click Header. (see Figure 1 image at right)
- Click on Choose File, select an image (jpg, gif, png) from your computer and click Upload.
- Adjust the header image with the slide ruler and click Crop Header.
- Click Visit Site and see what your webspace looks like now!