Add File repository (library) to website

Hi, I need to add a file library to a site. It will contain pdfs, jpgs, .docs etc. Users will be able to upload from the front end. Ideally, we will be able to upload multiple documents at one time from the backend. There will be one library, that can be searched. The documents will need to be tagged so that I can have three different pages showing three different libraries. EG Page 1: All documents, Page 2: Show only TAG 1 documents. Page 3: Show only TAG 2 documents. etc I only require the module(s) to be installed. I will provide a sample of 5 documents. I don't require for the library to be built, just the structure put in place. I have researched many modules for this and would like someone with experience in building libraries to do this. ideally, you will provide a link to a site where you have performed a similar task. Thank you