Java PDF 文件產生器 iText

iText
iText Tutorial: iText by Example
CJK fonts 中日韓字型 iTextAsian.jar
Using fonts

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfWriter;

public class Main {
  public static void main(String[] args) throws DocumentException,
      IOException {
    // 設定文件紙張為横向 A7
    Document document = new Document(PageSize.A7.rotate());   
    // 設定頁面邊距
    document.setMargins(100, 100, 50, 50);
        
    // 寫入檔案串流
    File file = new File("c:/tmp/temp.pdf");
    FileOutputStream os = new FileOutputStream(file);
    PdfWriter writer = PdfWriter.getInstance(document, os);
    document.open();    
    
    // 繁體中文
    BaseFont chineseTraditionalFont = BaseFont.createFont("MHei-Medium",
        "UniCNS-UCS2-H", BaseFont.NOT_EMBEDDED);    
    document.add(new Phrase("繁體中文\n", new Font(chineseTraditionalFont)));
    
    // 简体中文
    BaseFont chineseSimplifiedFont = BaseFont.createFont("STSong-Light",
        "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
    document.add(new Phrase("简体中文\n", new Font(chineseSimplifiedFont)));
    
    // 設定文件紙張為 A4, 產生新頁
    document.setPageSize(PageSize.A4);
    document.newPage();
    
    // 日文
    BaseFont japaneseFont = BaseFont.createFont("HeiseiMin-W3",
        "UniJIS-UCS2-H", BaseFont.NOT_EMBEDDED);
    document.add(new Phrase("アプンノ, あぷんの (apunno)\n", new Font(japaneseFont)));
    
    // 韓文
    BaseFont koreanFont = BaseFont.createFont("HYGoThic-Medium",
        "UniKS-UCS2-H", BaseFont.NOT_EMBEDDED);
    document.add(new Phrase("평화 (pyonghwa)\n", new Font(koreanFont)));
    
    document.close();    
  }
}