Question

watermarks are used in official documents to avoid​

Answer 1

Answer:

Watermarks in printed documents

These watermarks are normally used to prevent people from being able to make fake copies, and, therefore, to be confident that the banknote or document is authentic

Explanation:

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Answer 2

Explanation:

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Watermarks in printed documents

These watermarks are normally used to prevent people from being able to make fake copies, and, therefore, to be confident that the banknote or document is authentic.