Zoom Out and Look

Please resize the rainbow picture so that it fills the page. This step is easy if you change the View, first.
 

1. Try It: Change the View

Go to View->Zoom->One Page.

2. Try This, Too: Resize the Picture

Select the Rainbow picture.
Use the Handles to drag and stretch the picture so that it fills the page.

OK, that works.

Memo to Self: The rainbow in this example is a light pastel. If your rainbow picture is very dark, it may be difficult to read your text. You can use the Picture Tools to adjust the Brightness and Contrast if you wish.