Using Web service on-premise: how to convert http response object to a file.

Hi,

I have a web service that returns a file stream (pdf), and I am calling it on my workflow. I am able to get the response object as random ascii characters and some headers:

How do I convert these response data to a file?

The pdf file is located on my local server, and I am planning to attach it to an email in my workflow.

Hope someone can assist me. Thanks in advance.