HtmlToImageHttpPostFields Property

A collection of HTTP POST fields to be used when accessing a web page in HTML to Image converter. Each entry contains a parameter key and value. By default the converter form-urlencodes the keys and values when building the POST body; see EncodeHttpPostFields if the values are already encoded. If the collection is not empty, the converter will make a POST request to the web page URL with the fields from this collection

public KeyValueCollection HttpPostFields { get; }