Generate PDFs with Java

public class PDFGenerateSimpleExample {
     
    public static void main(String[] args) {
        ObjectMapper mapper = new ObjectMapper();

        ObjectNode payload = mapper.createObjectNode();
        payload.put("html", "<h1 class='header-one'>What is Lorem Ipsum?</h1> <p> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the <strong>1500s</strong>, when an unknown printer took a galley of type and scrambled it to make a type specimen book. </p>");
        payload.put("css", "body { font-size: 14px; color: #171717; } .header-one { text-decoration: underline; }");

        // your Anvil API_KEY
        RestClient client = new RestClient(API_KEY);
        HttpResponse<byte[]> response = client.generatePdf(mapper.writeValueAsString(payload));

        Files.write(Paths.get("output/generate-html-output.pdf"), response.body());
        System.out.println("Fill PDF finished");
    }
}