I am using RightSignature API. I have successfully followed the steps to generate a doc ID, and then the instructions say "PUT to the upload_url returned in the Sending Request response to upload the Document base file, complete with Text Tags." How do I make this request to the upload_url? I see no examples that have appropriate explanations to answer my question and yes, I did look at the API docs. I am not using PHP, or similar. I am using ColdFusion. I have checked and noted that it does provide PUT request functionality with CFHTTP, so that appears to not be the problem. How can I do this properly? How does the file actually get sent to you? Can I do a binary read of the file or something of that nature, in my CFHTTP call to upload_url, in the request body? The error I am receiving is "Unable to determine MIME type of file." I am setting the MIME type as application/pdf in the request header, so I do not know why I receive this error. Thank you!!!