Superimpose
Superimpose [ soo-per-im-POHZ][ transitive verb ]MEANING :1. to place something over something else
2. to print one image over anotherUSAGE EXAMPLE 1 :When he superimposed one signature over the other it became evident that they were not the same.
2. to print one image over anotherUSAGE EXAMPLE 1 :When he superimposed one signature over the other it became evident that they were not the same.