PNG FIle Replace to Exact Location

[MXKS]

I want to Replace PNG File Exact Position in Script, 

Step 1:- One PSD FIle Have a PNG File

Step 2:- I want to Replace New PNG in Exact Position in Scripts

[r-bin]

>>> One PSD FIle Have a PNG File

abracadabra

: )

[JJMack]

Hocus pocus Alakazam place may trim a png image files  transparent boarders to the subjects bounds Ajji Majji la Tarajji

[Kukurykus]

Perhaps there's Smart Object with (linked) .png he wants to replace for other same format file by script.