If you don’t change the PLR content more than 30%, you will risk having duplicate content. I am not sure if you will get banned from adsense but surely you will not rank high on search engines. I buy my PLR articles from http://www.starteronlinelibrary.com
and most of the articles there are easy to edit and had no problems in the last 3 years. Still making money from adsense and my blogs.
If you don’t change the PLR content more than 30%, you will risk having duplicate content. I am not sure if you will get banned from adsense but surely you will not rank high on search engines. I buy my PLR articles from http://www.starteronlinelibrary.com
and most of the articles there are easy to edit and had no problems in the last 3 years. Still making money from adsense and my blogs.