• Watermark
  Watermark
  A watermark is a recognizable image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light , caused by thickness or density variations in the paper...
  
  , a recognizable image or pattern in paper used to identify authenticity

Digital watermarks and digital security

• Digital watermarking
  Digital watermarking
  Digital watermarking is the process of embedding information into a digital signal which may be used to verify its authenticity or the identity of its owners, in the same manner as paper bearing a watermark for visible identification. In digital watermarking, the signal may be audio, pictures, or...
  
  , a technique to embed data in digital audio, images or video
• Audio watermark detection
  Audio watermark detection
  Watermarking is the process of embedding information into a signal in a way that is difficult to remove. If the signal is copied, then the information is also carried in the copy. A signal may carry several different watermarks at the same time...
  
  , techniques for detecting hidden information from watermarked signal.
• High-water mark (computer security), Network Security terminology
• Watermark (data file)
  Watermark (data file)
  A watermark stored in a data file refers to a method for ensuring data integrity which combines aspects of data hashing and digital watermarking. Both are useful for tamper detection, though each has its own advantages and disadvantages.- Data hashing :...
  
  , a method for ensuring data integrity which combines aspects of data hashing and digital watermarking
• Watermark (data synchronization)
  Watermark (data synchronization)
  Watermark describes an object of a predefined format which provides a point of reference for two systems/datasets attempting to establish delta/incremental synchronization; any object in the queried data source which was created, modified/changed, and/or deleted after the watermark value was...
  
  , Directory Synchronization related programming terminology
• Watermarking attack
  Watermarking attack
  In cryptography, a watermarking attack is an attack on disk encryption methods where the presence of a specially crafted piece of data can be detected by an attacker without knowing the encryption key.-Problem description:...
  
  , an attack on disk encryption methods

Music

• Watermark (Art Garfunkel album)
  Watermark (Art Garfunkel album)
  Watermark is the third solo album by Art Garfunkel, originally released in October 1977 on Columbia Records. When the first single, "Crying in My Sleep", failed to chart in the United States, the album was immediately withdrawn and a version of " Wonderful World" was added to the...
  
  , a 1977 album by Art Garfunkel
• Watermark (band)
  Watermark (Band)
  Watermark was a Contemporary Christian singing duo composed of husband and wife Nathan and Christy Nockels. They were under Michael W. Smith's record label, Rocketown Records.-History:...
  
  , a CCM singing duo comprising Nathan and Christy Nockels
• Watermark (Enya album), a 1988 album by Enya
• Watermark (Weakerthans EP)

Books and films

• Watermark, a 1992 book by Joseph Brodsky
  Joseph Brodsky
  Iosif Aleksandrovich Brodsky , was a Russian poet and essayist.In 1964, 23-year-old Brodsky was arrested and charged with the crime of "social parasitism" He was expelled from the Soviet Union in 1972 and settled in America with the help of W. H. Auden and other supporters...
  
  
• Watermark: A Novel of the Middle Ages, a 2010 book by Vanitha Sankaran
• Watermarks (film)
  Watermarks (film)
  Watermarks is a 2004 documentary directed by Yaron Zilberman that features women from the Viennese Hakoah swim team during the rise of fascism in 1930s Austria. The film describes the women's success as athletes leading up to the Anschluss of 1938 when the swimmers fled Austria to disparate...
  
  , a 2004 documentary about the Viennese Hakoah swim team

Finance

• Watermark, a target dollar amount for hedge fund managers before they can take profit.