Short description of PDF Stamp Command Line 2.5: PDF Stamp (PDF Watermark) is an advanced product that enables you to stamp content into a PDF document. Besides images, texts and graphics, PDF Stamp (PDF Watermark) is able to add links and notes. These processes can be realized in a determined number of pages with precise control over the size and position, the stamped text and/or images become a permanent part of each PDF document. PDF Stamp (PDF Watermark) is easy to use.