Dynamic media transformation service in a CDN

A network device receives, from a customer, a customer subscription to a media transformation service; receives, from the customer as a first component of the subscription, data associated with customer media; and receives, from the customer as a second component of the subscription, one or more customer-selected parameters that specify media transformations to be performed upon the customer media. The network device receives, from a client browser, a request for the customer media, and transforms, responsive to receipt of the request from the client browser, the customer media based on the one or more customer-selected parameters to produce a transformed version of the customer media. The network device sends the transformed version of the customer media, via a content delivery network, to the client browser.