Blogger does not have a File Manager

BLOGGER: LINKING TO A PDF OR WORD DOCUMENT IN A POST

To do this in Blogger is a little different than with Typepad because Blogger does not have a File Manager.  Instead, you can use a free service from Google called Google Docs (http://docs.google.com).

http://www.blogsbyheather.com/2009/01/blogger-linking-to-a-pdf-or-word-document-in-a-post.html