Yes, Cloudimage offers you the option to deliver other files - static content like PDF, JS or CSS files, via our Content Delivery Network.
By default, all URLs processed with Cloudimage are delivered as images.
If you like to deliver all of your static files with their original format, you need to enable that from your Admin panel -> Image Settings / Compression / Enable static Content acceleration and then to invalidate the old versions which are currently cached on the CDN.
If you like to deliver only specific static file in its original file format, you could use the function func=proxy
You could check our documentation on how to implement this function (and several other functions connected with the specific PDF, JS and CSS processing) here