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Making Signature Copy proof

Hi Guys,
I have developed a HTML email template in which i have inserted a Signature as JPEG file.
Presently users can copy this from the mail.
For security reasons this signature should not be copied from the mail.


Can someone please help me on this.


There is no technologically feasible way to prevent copying of a file sent in an email. Even if you had some sort of "magic code" that prevented them from copying the image directly, they could just snip it using a screen capture program, then use it anyways. It is therefore impossible to make it copy proof.