One very popular trend in digital scrapbooking is to add a white frame or border to your photographs in your layouts. This is super easy to accomplish and can be done in just a few clicks!
To start, open your digital scrapbooking page and select the layer of the photograph you want to add a white border to.
Once the layer is selected, go up to Layer -> Layer Style -> Stroke
Next, choose your settings for the stroke options:
Here you'll see I set the size of the stroke to 24 pixels - you can adjust to your layout as necessary.
I also changed the color from the default of black to white.
Hit OK and your photo will have a nice border added to it!
Adding a stroke layer style to your photos in Photoshop is very simple and easy to do - if using Photoshop Elements, you'll find similiar settings under Layer -> Layer Styles as well to achieve the same effect!