Marco

Shortcode Simplex it’s a lightweight Shortcode plugin creator, permit all WP Admins to define new shortcode ( single or enclosed one ) to any kind of purpose. With it’s minimal human readable and 
intuitive interface you can create and manage all your Shortcode.

Shortcode Simplex

This lightweight plugin permit to create and manage easily user define Shortcode inside Wordpress.

authorstream

Helps you easily embed different presentation formats like PowerPoint files, Apple Keynotes, Adobe PDF files into your WordPress posts by inserting the WordPress embed code of presentations from authorSTREAM.authorSTREAM uses WordPress Short code API.
More info:
<ul>
<li><a href="http://www.authorSTREAM.com/Faq" rel="nofollow ugc">authorSTREAM WordPress plugin</a>.</li>
</ul>

authorSTREAM

Doesnt' work in https

Easily embed presentations(Keynotes, PDF, PPT, PPTX files) into your WordPress posts.

Shortcode Simplex vs authorSTREAM