On Jul 12, 2010, at 2:52 PM, Gary wrote:

> I'm sure it is possible, but I am unsure how to do this.  I have created a 
> Sale coupon that I was going to put up on a site that I manage, for visitors 
> to print out and bring to the store. The coupon is currently a .png, however 
> I was planning on converting to a pdf.  I would like to put on the coupon a 
> serial number that increases by 1 everytime the page is viewed. I dont 
> really care if someone refreshes the page and skews the numbers.
> Is this possible and could someone give me some help?
> Thanks
> Gary 

Is there any particular reason you need it to be a PDF?  If not and the GD 
library is installed in your PHP, I would suggest using the GD library to draw 
your serial number on the coupon.  As for keeping track of the counter I would 
do it either in a database table or save the number to file.

Take care,

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