Copy Content or Duplicate content is the worst enemy for any Website or blog and it can cost you a lot if google has found copy content or duplicate content in your Website or blog. Your website or blog can either be removed from the search engine or your ranking can be dropped for all your targeted keywords.
Now i share a few tool for Identifiying your copy content or Duplicate content checker Tool.
One of my favorite, reliable and accurate tool is copyscape, which provides me the ability to search published and unpublished articles against duplicate content issue. The tool will search all pdf files, internet websites, blogs, forums etc and find the locations with links from where a article is copied.