Making Postage Stamp

Make a transparent background of size 300x300

Draw rectangle :40,40,280,210; 

fill-color : color of your choice

F/X- Wave :1x5

Transform-rotate: -90

F/X- Wave :1x5


Now your black stamp will look like this 

Blank Stamp

Composite image, change the offset according to your need. Save as gif or png

Sample: