1.jar包：iText-2.1.5.jar

2.code：

import java.awt.Color;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import com.lowagie.text.Document;import com.lowagie.text.DocumentException;import com.lowagie.text.Element;import com.lowagie.text.Font;import com.lowagie.text.FontFactory;import com.lowagie.text.Image;import com.lowagie.text.PageSize;import com.lowagie.text.Phrase;import com.lowagie.text.pdf.ColumnText;import com.lowagie.text.pdf.PdfContentByte;import com.lowagie.text.pdf.PdfWriter;public class GeneratePdf {    private void handleText(PdfWriter writer, String content, String color,            float x, float y, float z) {        PdfContentByte canvas = writer.getDirectContent();        Phrase phrase = new Phrase(content);        if (color != null) {            phrase = new Phrase(content, FontFactory.getFont(                    FontFactory.COURIER, 12, Font.NORMAL, new Color(255, 0, 0)));        }        ColumnText.showTextAligned(canvas, Element.ALIGN_UNDEFINED, phrase, x,                y, z);    }    public File Pdf(String imagePath, String mOutputPdfFileName) {        Document doc = new Document(PageSize.A4, 20, 20, 20, 20);        try {            PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(                    mOutputPdfFileName));            doc.open();            doc.newPage();            Image png1 = Image.getInstance(imagePath);            float heigth = png1.getHeight();            float width = png1.getWidth();            int percent = this.getPercent2(heigth, width);            png1.setAlignment(Image.MIDDLE);            png1.setAlignment(Image.TEXTWRAP);            png1.scalePercent(percent + 3);            doc.add(png1);            this.handleText(writer, "This is a test", "red", 400, 725, 0);            doc.close();        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (DocumentException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        File mOutputPdfFile = new File(mOutputPdfFileName);        if (!mOutputPdfFile.exists()) {            mOutputPdfFile.deleteOnExit();            return null;        }        return mOutputPdfFile;    }    public int getPercent1(float h, float w) {        int p = 0;        float p2 = 0.0f;        if (h > w) {            p2 = 297 / h * 100;        } else {            p2 = 210 / w * 100;        }        p = Math.round(p2);        return p;    }    private int getPercent2(float h, float w) {        int p = 0;        float p2 = 0.0f;        p2 = 530 / w * 100;        p = Math.round(p2);        return p;    }    public static void main(String[] args) {        GeneratePdf gp = new GeneratePdf();        String pdfUrl = "C:\\pdf.pdf";        File file = gp                .Pdf("C:\\683.JPG",pdfUrl);        try {            file.createNewFile();        } catch (IOException e) {            e.printStackTrace();        }    }}