Documentation on getting pre-signed URI is not clear enough
https://developer.adobe.com/document-services/docs/apis/
I have the credentials including an access token, but I don't know what to put as the "string" value for the "mediaType"in the body of the POST request. Is this where the actual PDF I want uploaded goes? If not, how do I do that? Do I need to convert the PDF into an byte array first? I'm so confused.
