To display a signature appearance on all pages of a PDF document is a common request. But the PDF specification (at least in PDF 2.0 - before this was only documented in the "Digital Signature Appearance specifications" of Adobe) officially states that:

> The location of a signature within a document can have a bearing on its legal meaning. For this reason, signature fields shall never refer to more than one annotation.

Because of this and according to viewer implementations the SetaPDF-Signer component does not support severals widget annotations for a single signature field.

This demo simply makes use of individual stamp annotations which are added to all other pages when the signature appearance is created.

It uses a proxy class that wraps the original appearance instance and adds the stamp annotations.

PLEASE NOTE: THIS DEMO ONLY WORKS FOR DOCUMENTS WHERE ALL PAGES HAVE THE SAME ROTATION.