I just helped out a customer with an issue and I wanted to share a quick tip for our PDF Embed users. When setting up your credential for PDF Embed, you are asked to specify a doman name. If you enter (for example) www.raymondcamden.com, be aware that it means that PDF Embed will *only* work on that domain. If you try to load it on raymondcamden.com, it will not work.
I suggest people use (yourdomain).com (or dot whatever) as that will support both the www and non-www versions of your site. It will _also_ support dev. or stage. URLs as well, letting you use the same IDs in development and staging environments.