I am working with a company that has a Drupal site and would like to provide access to documentation in two ways:
1) Browsing to the site and logging in - We already do this where the user must log in before getting to HTML pages that have links to the documentation files (that are currently in PDFs). The PDFs are not currently secured with a username password and would like to remedy that by either putting user/pw on them that works with the user/pw that they logged in with or by translating the PDFs (which are very simple, no diagrams) into content and driving them with content pages.
2) Open a browser with no menu from a visual basic program and open the content that is on the site (either PDF or content pages) through something like the token module. Note that we would like to allow opening a page that has links that go to multiple content pages or directly to a content page.

Also, note that we are hosted on GoDaddy - Linux Deluxe with CPanel and will need to work within the confines of their hosting service.
Running Drupal 7.53

I have a Power Point that demonstrates the operation.

We would like to maintain long term. (hand over the keys after implementing :-))

John