Short description of PDF Watermarks 1.0: Simply add a watermark (texts and pictures) to all of your PDF files with one mouse click! This will mark you files as your copyrighted property. You can add the watermark behind all objects (behind existing texts) or print it over existings texts. You can number the pages of existing PDF files or add you company logo or your Copyright message. You can process as much files as you want with one mouse click.