FrameFun is a simple application to add frames to Bitmap, JPEG or PNG images. You may select an outer frame, a border around the image and a drop shadow for a 3D effect.
You can modify the color and width of each Frame, Border and Shadow. You may additionally modify the direction of the drop shadow.
A Batch Conversion option allows you to "frame" several pictures in one go. If the pictures have different sizes, you can select a relative Frame/Border/Shadow width.