java输出pdf

package snake;
 
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
 
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfWriter;
 
public class PDFUtil {
 
	public static void printPDF(String content) throws DocumentException,
			IOException {
		Document document = new Document();
 
		PdfWriter.getInstance(document, new FileOutputStream(
				"D:/demo.pdf"));
		// BaseFont chinese = BaseFont.createFont("STSong-Light",
		// "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
		// 使用windows自带的字体
		BaseFont chinese = BaseFont.createFont("C:/windows/fonts/simsun.ttc,1",
				BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
		Font font = new Font(chinese, 14, Font.NORMAL);
 
		document.addAuthor("WESTDREAM");
		document.addTitle("Test iText");
		document.addSubject("This is an iText demo");
		document.addKeywords("iText keywords");
		document.addCreator("Using iText");
		document.open();
		document.add(new Paragraph(content, font));
		document.close();
	}
 
	public static void main(String[] args) throws Exception {
		File file = new File("C:\\Users\\zan\\Desktop\\demo.txt");
		byte[] bytes = new byte[(int) file.length()];
		InputStream input = new FileInputStream(file);
		input.read(bytes, 0, (int)file.length());
		printPDF(new String(bytes,"GBK"));
	}
}