public override void EventOccurred(IEventData data, EventType type)
{
if (data is TextRenderInfo renderInfo)
{
var oFont = renderInfo.GetFont();
PdfDictionary fontDescriptor = oFont.GetPdfObject().GetAsDictionary(PdfName.FontDescriptor);
PdfNumber number = fontDescriptor?.GetAsNumber(PdfName.FontWeight);
double? weight = number?.GetValue();