Signing documents in bulk (Google Docs) using Apps Script

Question

I'd like to create a script to sign some Google Docs in bulk. My first idea was to store a Google drawing with the signature in my drive, and then insert it in the docs. Any better idea than this?

Thank you!

For now I didn't code anything as I'm not convinced of my Google Drawing idea

Answer 1

This put an image a the bottom of a document.

function signature() {
  const doc = DocumentApp.openById(gobj.globals.testdocid);
  let body = doc.getBody();
  let file = DriveApp.getFileById(gobj.globals.coopersigid).getBlob();//file was a jpg of a signature
  body.appendImage(file);
}