Blank PDFs when trying to fetch via representations

I am uploading MS Office files doc/docx/xls/xlsx via the Box API. They are able to be retrieved via the API and viewed in the Box viewer just fine. I can even use annotations within the viewer. So far so good.

I am trying to download a PDF conversion of the file via the API using the representations api here:

https://developer.box.com/reference#representations

Again it _appears_ to work, but the downloaded PDF is blank. Is there an intermediary step I need to do in order to download the PDF version of the file?

Here is a sample response from the representations API call:

{
    "type": "file",
    "id": "34***phone number removed for privacy***",
    "etag": "1",
    "representations": {
        "entries": [
            {
                "representation": "pdf",
                "properties": {},
                "info": {
                    "url": "https://api.box.com/2.0/internal_files/34***phone number removed for privacy***/versions/***number removed for privacy***047/representations/pdf"
                },
                "status": {
                    "state": "success"
                },
                "content": {
                    "url_template": "https://public.boxcloud.com/api/2.0/internal_files/34***phone number removed for privacy***/versions/***number removed for privacy***047/representations/pdf/content/{+asset_path}"
                }
            }
        ]
    }
}

If I use the URL:

https://public.boxcloud.com/api/2.0/internal_files/34***phone number removed for privacy***/versions/***number removed for privacy***047/representations/pdf/content/

It does download a PDF file, but the PDF file is empty. I've tried this with several documents and never get anything but a blank PDF.

Has anyone seen this before?