Digital signature technology helps to verify the origin and completeness of a picture. The author (or owner, or administrator, etc.) signs the picture and thereby places his signature in the picture file, as well as a description of the picture's characteristics.
Signed pictures are differentiated in the Browser listing via a ribbon icon. You can verify a signed picture at any time, for example by double-clicking its ribbon. Although a signed picture can still be changed, it is easy to discover that it has been changed.
Digital signature technology does not protect a picture from unauthorized publication.
Functions for Work with Digital Signatures