docs: public Rectangle getTextSize(String text, Font font) {
  		template.saveState();
  		// get the font
  		DefaultFontMapper mapper = new DefaultFontMapper();
  		BaseFont bf = mapper.awtToPdf(font);
  		template.setFontAndSize(bf, font.getSize());
  		// calculate text width and height
  		float textWidth = template.getEffectiveStringWidth(text, false);
  		float ascent = bf.getAscentPoint(text, font.getSize());
  		float descent = bf.getDescentPoint(text, font.getSize());
  		float textHeight = ascent - descent;
  		template.restoreState();
  		return new Rectangle(0, 0, textWidth, textHeight);
  	}