I am making coupons for my parents' restaurant which I'm going to e-mail to customers

Question

is there a way to fix it so people can't print out extra copies or scan their copy and use them over and over again??

I'm going to put an expiration date on them, but people could still do this within the time frame.

Thanks.

Answer 1

you can number them (though thats going to be a pain) and keep track. and print on them 'can only be printed once' and see what happens. good luck.

Answer 2

what about unique codes for certain people  

Answer 3

only way to do that is with special paper that has a water mark a foil marking or when copied says on copied part "copy"  

Answer 4

I know this is not the answer you what.

I do have an idea.

What if you put a place for them to sign their name.

Then you can check them off a master list.

You won't stop the copying, but you will know who does it.

Next time you send coupons, take them off the list.

I bet most of the people will be honest.