Where can I download Article Content synomizers?

I've decided to rip articles and post it at a blog to earn adsense revenue because I really need cash urgently to pay bills.

But what are some good software to synomize words in an article to avoid looking as if it's copied?

try http://www.blackhatworld.com/blackhat-seo/black-hat-seo-tools/54134-unique-content-100-site-content-rewriter.html