You can use this script to add captcha to your forms for preventing bots and unwanted applications from filling up on your site. Very easy to setup and modifiable, you can even add new fonts to it! You can also use custom fonts such as popular animal font that will even prevent OCR applications from recognizing the characters.
Random rotation of characters makes it very difficult for software applications to recognize the characters. On the fly word creation makes this captcha UNBREAKABLE. Each time a new word is shown to the user and never repeats.
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