HTTP REQUEST | Content-Type: multipart/form-data

Hello, everyone.
I want to make an HTTP request in which I will send a file to Gotenberg for conversion to PDF.

In the HTTP request node, how do I send the file?
I would like to point out that I have the file in Reader format.


Gotenberg returns a 415 error:

How do I specify the Content-Type: multipart/form-data in the request?

In the headerContentType

I have the same error.

My request: