A watermark is a great way to protect your videos from being abused or even stolen. When you watermark a video, every single frame will bear a mark which can be your logo, your brand name or simply your website address. This can also be especially relevant for videos hosted on sites other than your own, such as on Youtube or Vimeo. When done correctly, a watermark should be unobtrusive and blend unnoticeably with the rest of the video, despite doing a crucial job of protecting your hard earned intellectual property.