I am having an official document through which Dealer can make sales or purchases.
This offical document is required by the dealer to have concession when he purchases something from other states.
This offical document is called concession Form.
Each concession form for has a serial no that can not be duplicate.
so suppose a Dealer is approved 5 concession Forms and I send him the email containing as pdf version of the forms as attachement i.e electronical transfer of the concession forms, then I am concerned with the Security of these forms such as they should not be duplicated by some other dealer.
I can do watermark on them but watermark can also be scanned.
If someone scans them and can make use of the forms for their own purpose instead of the intented person that's problem to be sorted out.
can anyone help me!