Properly Redirect Files and Directories with .htaccess

The Problem A few days ago I was tasked to change the name of a directory containing PDF files linked to from many internal and external pages. Say you have a long list of links that go to important PDF files your visitors rely on. http://example.com/files/pdf/important.pdf http://example.com/files/pdf/safety.pdf http://example.com/files/pdf/instructions.pdf Now for whatever reason…