If you want to tie DropBox to WP, this is the go-to app!

Right on target. Easy to install, easy to use. Base app connects to Flickr, Instagram, 500px and Dribbble out of the box. Premium extension apps are super – they add access to other cloud storage services such as dropbox. Once connected, access to those servers happens through the “new page” or “new post” window. The “installer” extensions enhances the value: with it, you can move files into your blog, which means you can duplicate files, storing one on DropBox and the other in your blog. All this for FREE! With a $5 extension, you get much more value. Thanks for a great app.