The .pdf file is a template to create a full size, DVD/CD booklet style cover. It will hold 2 DVD's (if instructions are followed as given).
It has been used for Literacy (e.g. "if this novel was turned into a movie, what would the DVD cover look like, and what information might you include on it to encourage someone to buy it?").
*Note: Tabloid size paper is needed if intended to hold DVD's; it can be printed to a smaller scale, but DVD's won't fit in it.