The end point for exporting document to Png is no more available.
request.Headers.Add("Accept", "image/png;dpi=200"
When you run it, you get a HTTP 400 error.
If you use jpeg, it runs as expected
request.Headers.Add("Accept", "image/jpeg;dpi=200"
One more remark. Could be interesting to be able to export to “.vdx” and “vsdx” Microsoft Visio format with this end point. I know it is an old, old request but in case 😊.
Regards.