JavaFX:使用DocPrintJob打印时更改字体大小？

PrinterJob job = PrinterJob.createPrinterJob();

Printer printer = Printer.getDefaultPrinter();
job.setPrinter(printer);

PageLayout pageLayout = printer.createPageLayout(Paper.A4, PageOrientation.PORTRAIT, Printer.MarginType.DEFAULT);

PrinterAttributes attributes = printer.getPrinterAttributes();
attributes.setCopies(1);
attributes.setPrintQuality(PrintQuality.HIGH);
attributes.setJobName("MyPrintJob");

DocPrintJob docPrintJob = job.getJobSettings().getJobStatus().getDocPrintJob();

Printable printable = (graphics, pageFormat, pageIndex) -> {
    if (pageIndex != 0) {
        return Printable.NO_SUCH_PAGE;
    }
    
    Graphics2D g2d = (Graphics2D) graphics;
    g2d.setFont(new Font("Arial", Font.PLAIN, 12)); // 设置字体大小为12
    
    // 打印内容
    g2d.drawString("Hello, World!", 100, 100);
    
    return Printable.PAGE_EXISTS;
};

docPrintJob.print(printable, pageLayout);