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as this tag does a whole bunch of things, I decided to show one more usage example.
Today I’m gonna show some captcha:
<cfimage action="captcha" fontSize="18" width="150" height="75" text="placona" difficulty="low">
Which will display something like this:

<cfimage action="captcha" fontSize="18" width="150" height="75" text="placona" difficulty="medium">
Displaying something like:
<cfimage action="captcha" fontSize="18" width="150" height="75" text="placona" difficulty="high">
Which displays my favorite and hardest one.

See how easy we go from very simple to very complex captchas by only changing the attribute difficulty?
Hope you liked the examples.