Acrobat User Community Forums

Unfortunately, stamps are a kind of Annotation that are intended to be placed manually.  But there are a couple of things that can be done.

Number one is to consider using a watermark.  These give the same visual appearance of a stamp and Acrobat provides options for placing watermarks on all pages of a document, and watermarks can be placed with a batch process or script.

If you really need a stamp annotation, then you can write a script to copy the stamp to all pages of the document. This is actually very simple.  Each annotation has a set of properties that include the page number.  All the script has to do is to get a copy of the properties and change the page number to create an exact duplicate on another page. 

Try this:

1.  Open a PDF and add a stamp to the current page.

2. Run this code from the console window.

  // Assume that the stamp is the only
  // annot on the page
  var annt = this.getAnnot(this.pageNum)[0];
  var props = annt.getProps();
  for(var i=0;i lt this.numPages;i++)
  {
    props.page = i;
    if(i != this.pageNum)
      this.addAnnot(props);

  }

Notice that I use "lt" inplace of the actual lessthan symbol.  Be sure to fix this up before running the code.

   I also haven't tested this code, so there may be errors.