This static parameter gives the maximum number of threads in the current .NET application domain that can convert HTML to PDF simultaneously. This parameter must be set before the first conversion performed in the current application domain. When this property is set with a negative value or zero the concurrency level is maximum. The default value is 4.

public static int HtmlToPdfConcurrencyLevel { get; set; }

Public Shared Property HtmlToPdfConcurrencyLevel As Integer
	Get
	Set

public:
static property int HtmlToPdfConcurrencyLevel {
	int get ();
	void set (int value);
}