Batch Watermark PDF File With A-PDF Watermark

From: http://a-pdf.com/faq/is-it-possible-to-add-a-shape-watermark-to-pdf-with-a-pdf-watermark.htm

With A-PDF Watermark ( http://a-pdf.com/watermark/index.htm ), users can insert text, image, dynamic date time, PDF and shape watermark to PDF with simple steps.