convert markdown to pdf
run Application.main, change your markdown file path and choose your css path
AsianFontProvider.class, here you can chage your font
BaseFont font = BaseFont.createFont("font/simfang.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
HtmlPdfConverter.writeStringToOutputStreamAsPDF(html, outputStream, new WaterMarkerGenerator("1e587116-067d-4c9c-a9e3-3dd5c102f77b"));