Jagged Edges
Using Adobe Photoshop 5.5

Before

After
1) Open Image
Go to File and Open. Find your image and select open.
   
2) Image, Mode, RGB
Go to image, go down to mode, and then down to RGB Color
   
3) Make Background a Layer
Double click on the Background layer and rename it to Layer 0. If the layers palette is not showing go to Windows , Show Layers.
   
4) Increase Canvas
Add an extra inch to both the lenght and width.
   
5) Select White Area
Using the Magic Wand tool select the white area around the image. Make sure the tolerance is set for 1.
   
6) Select and Inverse
After selecting the white area go to Select and choose Inverse.
   

7) Select, Modify, Border
Go to:
A) Select
B) Modify
C) Border

Then go to
A) Set border for 25 pixels
B) Select OK

 
   
8) Sprayed Strokes
Go to
A) Filters
B) Brush Strokes
C) Sprayed Strokes
 
9) Sprayed Strokes Settings
To make jagged edges:
A) Use the zoom in and out to see the whole picture
B) Set the Stroke Length to 5
C) Set the Spray Radius to 15
D) Select OK
 
10) Crop the Final Image
To Crop the final image select the area you want. Go to Image, Crop