About PDF Edit , Add Text and Image at specific place in PDF

Is there any app or ways  that allows us to add a custom text(user name)and Image (signature) in a PDF document at a dynamic location?   Please find the below sample example,   
1 answers

You'll probably need a java action for that, I'd look for options using the pdfbox.jar library or something similar.

On the other hand if yoou can identify which name and signature image goes where in the pdf, you might be able to model this in a document template as well, but not sure if this is somoething that you can do in your case (I might be missing some requirements in the question)