You might have noticed in some websites that shows an icon on the side of the document or file link. PDF icon is most common and widget used icon on links directing to PDF. Now by using MimeTypes Link Icons plugin you can automatically convert your file links to their icons. The plugin covers a long list of supported file extensions where it would be showing the icons automatically.
Using Google Doc Embedder one can easily embed many file types inside WordPress pages. Easily means that you doesn’t need to suffer from the problems of file type embedding, iframe issues etc. It allows better inline viewing and download (optional) of given file types. Also it doesn’t require Flash or PDF browser plug-ins required for viewing the embedded content.