带黑色字体的iText矩形

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;

public class PDFGenerator {
    public static void main(String[] args) {
        try {
            // 创建文档对象
            Document document = new Document();

            // 创建PdfWriter对象
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("output.pdf"));

            // 打开文档
            document.open();

            // 创建页面
            document.add(new Paragraph("Page 1"));

            // 创建矩形
            Rectangle rectangle = new Rectangle(100, 100, 200, 200);
            rectangle.setBorderColor(BaseColor.BLACK);
            rectangle.setBackgroundColor(BaseColor.BLACK);

            // 添加矩形
            PdfContentByte content = writer.getDirectContent();
            content.rectangle(rectangle);

            // 添加文本
            BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
            Font font = new Font(bf, 12, Font.NORMAL, BaseColor.WHITE);
            Chunk chunk = new Chunk("Hello, iText!", font);
            ColumnText.showTextAligned(content, Element.ALIGN_LEFT, new Phrase(chunk), 120, 150, 0);

            // 关闭文档
            document.close();

            System.out.println("PDF generated successfully.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}