Placing PDF's on Shopify

Example of PDF's on Shopify:

<iframe src="https://app.box.com/embed/s/x6x4f8mc2ajxas2w4ybuedfnj0cponv5?sortColumn=date&view=list" width="500" height="400" frameborder="0" allowfullscreen webkitallowfullscreen msallowfullscreen></iframe>