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  1. Oxford Dictionary

    digital watermark

    • n.
      a piece of code embedded in a digital image, video, or audio file in order to provide copyright information, typically being undetectable during normal use of the file

    • noun: digital watermark, plural noun: digital watermarks

    • 釋義

    名詞

    • 1. a piece of code embedded in a digital image, video, or audio file in order to provide copyright information, typically being undetectable during normal use of the file you might also consider adding a digital watermark to your photos, which renders them unusable for commercial purposes