Dragonfly – Treehouse Blog Dragonfly – Treehouse Blog Learn to code and change your life! Using Dragonfly to Upload Images in Ruby In this short video Jason Seifer, our Ruby expert, shows you how to upload images using Dragonfly in Ruby. Dragonfly is a framework that enables on-the-fly processing for any content type. It is especially suited to image handling. It can... The post Using Dragonfly to Upload Images in Ruby appeared first on Treehouse Blog.