Is it possible to print a text from a URL into a image, in real time?

I want to make a coupon and i already have the name or email address of the user, i want to generate the link to a image (the coupon) plus the name and/or email so it's visible into the coupon.

This is for personalization and being able to control the开发者_开发百科 coupons.

Thanks.

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Maybe this tutorial will help: Serving Dynamic Images with Python CGI and Graphics Libraries