How to display content part in seeddms full-text index info

Question

          I have installed the seeddms in my local ubuntu 16.04 server and I did the full text index info and could not find the option to display the contents of the uploaded documents and pdf like in the demo(http://demo.seeddms.org/out/out.IndexInfo.php). I searched it and could not find the relevant answer.

         The text[txt] format files are getting indexed and the search[Full text search] is working for the same.

I have enabled this option by referring to the help documentation[https://stackoverflow.com/questions/24177309/how-to-display-content-part-in-seeddms-fulltext-index-info]
Admin tools -> Setting -> [tab] Site -> [checked ] Enable Full text search.

          Please give me any suggestions to sort it out.