如何在iText7中创建带文本超链接的PDF/UA

import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Link;
import com.itextpdf.layout.element.Paragraph;

public class CreatePDFWithLink {
    public static void main(String[] args) {
        String outputFilePath = "path/to/output.pdf";
        
        try {
            // 创建PDF文档对象
            PdfWriter writer = new PdfWriter(outputFilePath);
            PdfDocument pdf = new PdfDocument(writer);
            
            // 创建页面
            PdfPage page = pdf.addNewPage();
            
            // 创建字体
            PdfFont font = PdfFontFactory.createFont();
            
            // 创建超链接
            Link link = new Link("Click here", "https://www.example.com");
            link.setFont(font);
            
            // 创建段落
            Paragraph paragraph = new Paragraph();
            paragraph.add(link);
            
            // 添加段落到页面
            Document document = new Document(pdf, page);
            document.add(paragraph);
            
            // 关闭文档
            document.close();
            
            System.out.println("PDF with link created successfully.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}