General English


  • noun a pattern of bits that is digitally embedded in a data file in order to make it possible to detect unauthorised copies


  • Patterns of bits which are incorporated into digital intellectual property, such as voice, video, and/or text, to identify its source. The bits contain information such as the copyright holder, or its intended area of distribution. While ordinary watermarks are usually intended to be visible, digital watermarks are designed to be imperceptible. Such patterns, for instance, must be encoded into a CD or DVD without affecting sounds or images. Also called digital watermark.

Information & Library Science

  • noun a distinctive mark impressed into the fabric of paper when it is made, which can be seen by holding the paper to the light