Drupal 7 site just for searching PDFs and Word docs


I’m kind of new to Drupal.

My goal is to build a Drupal site where I upload PDFs or Word docs, and those docs become 100% searchable. 

I’m looking for guidance on the best approach to accomplish this.

Initially I thought that a database would work, but then the database will only allow me to search for the document’s title and any other metadata that I might add.

Then, I thought on Search API Attachments, but I’m also not sure about it. 

Or maybe a combination of both could work…???

What do you think??  

Any guidance is greatly appreciated.

Note: Due to some restrictions, I can only use Drupal 7.

Drupal version: 

Source: https://www.drupal.org/taxonomy/term/2/feed