Does the web crawler follow and index pdf files or other rich text format documents?

Yes, our improved web crawler now follows almost any file type found or referenced on your starting ROOT URL, and will index any meta data found in those files.
From HTML to, PDF, DOC, PPT, or even MP3 files, to video files, and any other file type, our web crawler will make it all available for search in just minutes.
 
Here's a nice clip to show you an example: