PdfBox中的阿拉伯语文本

Question

您好我试图使用pdfbox在pdf中显示阿拉伯文字，但遗憾的是我无法获得所需的正确输出。我正在逆向而不是从右向左阅读它从左到右阅读。任何人都可以帮助我如何使用pdfbox从右到左阅读，因为我是pdf框的新手。

  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.util.List;
  import java.util.Properties;

 import org.apache.commons.lang.StringEscapeUtils;
  import org.apache.pdfbox.pdmodel.PDDocument;
  import org.apache.pdfbox.pdmodel.PDPage;
  import org.apache.pdfbox.pdmodel.PDPageContentStream;
  import org.apache.pdfbox.pdmodel.common.PDRectangle;
  import org.apache.pdfbox.pdmodel.font.PDFont;
  import org.apache.pdfbox.pdmodel.font.PDType0Font;

  import com.ibm.icu.text.Transliterator;
  import com.itextpdf.text.Document;
  import com.itextpdf.text.DocumentException;
  import com.itextpdf.text.Font;
  import com.itextpdf.text.Paragraph;
  import com.itextpdf.text.Phrase;
  import com.itextpdf.text.pdf.BaseFont;
  import com.itextpdf.text.pdf.FontSelector;
  import com.itextpdf.text.pdf.PdfWriter;

  public class Main {

  static File arialFile = new File(Main.class.getResource("/KacstOffice.ttf").getFile());

  public static void main(String[] args) throws IOException, DocumentException {
      Properties langProperties = new Properties();
      InputStream langSelection = Main.class.getResourceAsStream("/i18n/messages_ar.properties");
      langProperties.load(langSelection);
      File arialFile = new File(Main.class.getResource("/arial.ttf").getFile());
      String ENGLISH_TO_ARBIC = "Latin-Arabic";
      String englishString = (String) base64Decode();
      String unicodeCodes = StringEscapeUtils.escapeJava(englishString);
      System.out.println("Unicode codes:" + unicodeCodes);
      Transliterator chineseToLatinTrans = Transliterator.getInstance(ENGLISH_TO_ARBIC);
      String result1 = chineseToLatinTrans.transliterate(englishString);
      System.out.println("Chinese to Latin:" + result1);
        PDDocument document = new PDDocument();
        PDPage page1 = new PDPage(PDRectangle.A4);
        document.addPage(page1);
        PDPageContentStream contentStream = new PDPageContentStream(document, page1,true, true);
        PDFont font = PDType0Font.load(document, arialFile);
        contentStream.beginText(); 
        contentStream.setFont(font, 12);
        contentStream.newLineAtOffset(25, 500);
      contentStream.drawString(langProperties.getProperty("pdf.GeneratedOn"));
        contentStream.endText();
        System.out.println("Content added")
        contentStream.close();
        document.save(new File("my_doc1.pdf"));
        document.close();
  }
    public static  Object base64Decode() throws IOException  {
    Properties langProperties = new Properties();
    InputStream langSelection = Main.class.getResourceAsStream("/i18n/messages_ar.properties");
    langProperties.load(langSelection);
    Object  str ="تاريخ الانتهاء"; 
    return str;
  }
}