Thank you all for your help and suggestions computersavvy, remmilou and teckk.
@ computersavvy
I did do a google search before posing this question. But there too many and some had confusing installation steps. Others require to run java on a jar file, i.e openKM.
@ remmilou and teckk
Paperwork a.k.a openpaper.work is in LM. It's simple and to the point. I don't need features found in enterprise versions of DMS ( document management system). It's just for personal use.
Thanks again to all of you.