How do I add a picture watermark to 4 postcards on 1 page?

[Krista Dann]

I am trying to creat invitations with a picture watermark, they are 4x6
postcard invitations that are 4 to a page. Every time I highlight the four
areas to add a watermark, it continues to add them on four different pages.
Can someone help me please?

 

[Suzanne S. Barnhill]

See http://www.gmayor.com/graphics_on_labels.htm (note that four postcards
to a page are a "label" layout).