EasyDocMerge looks like a internet search engine and it will highly recommend you to utilize it by promising a better service. If you want to refuse it and try to alter it, you could not find it on the Control Panel and you could not delete it efficiently. Later, you would find your landing page is changed and your own search engine is replaced. In this case, you could guess that EasyDocMerge is a browser hijacker and it is the last thing you would like to keep on your browser.