條形碼、二維碼放到pdf檔案固定位置

package com.test;


import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.*;
import com.spire.pdf.PdfPageSize;
import com.spire.pdf.graphics.layer.PdfLayer;
 
import java.awt.*;
import java.awt.geom.Point2D;
public class TuCeng {
    public
 
 static void main(String[] args) {
         
           //Create a new PDF document
            PdfDocument target = new PdfDocument();
            //Add a page
            PdfPageBase page = target.getPages().add();
     
            //Load an existing PDF document
            PdfDocument pdf = new PdfDocument();
            pdf.loadFromFile(
 
"C:\\Users\\Lenovo\\Desktop\\mys.pdf");
            //Create a template of the first page in the PDF
            PdfTemplate template = pdf.getPages().get(0).createTemplate();
     
            //Add a layer to the new created PDF
            PdfLayer layer1 = target.getLayers().addLayer("Layer 1");
            PdfCanvas canvas1 
 
= layer1.createGraphics(page.getCanvas());
            //Draw the template to the layer
            canvas1.drawTemplate(template, new Point2D.Float(20,50), PdfPageSize.A4);
     
            //Add a layer to the new created PDF
            PdfLayer layer2 = target.getLayers().addLayer("Layer 2");
            PdfCanvas canvas2 = layer2.createGraphics(page.getCanvas());
            //Draw an image to the layer
            canvas2.drawImage(PdfImage.fromFile("E:\\1123123.jpg"), new Point2D.Float(155,690), new Dimension(200, 100));
            
            //Add a layer to the new created PDF
            PdfLayer layer3 = target.getLayers().addLayer("Layer 3");
            PdfCanvas canvas3 = layer2.createGraphics(page.getCanvas());
            //Draw an image to the layer
            canvas3.drawImage(PdfImage.fromFile("E:\\1123123.jpg"), new Point2D.Float(155,0), new Dimension(200, 100));

            //Save the resultant document
            target.saveToFile("C:\\Users\\Lenovo\\Desktop\\mys2.pdf");
        }
     
}

需要jar包Spire.Pdf.jar

最終預覽效果：

package com.test;


import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.*;
import com.spire.pdf.PdfPageSize;
import com.spire.pdf.graphics.layer.PdfLayer;

import java.awt.*;
import java.awt.geom.Point2D;
public class TuCeng {
public static void main(String[] args) {

//Create a new PDF document
PdfDocument target = new PdfDocument();
//Add a page
PdfPageBase page = target.getPages().add();

//Load an existing PDF document
PdfDocument pdf = new PdfDocument();
pdf.loadFromFile("C:\\Users\\Lenovo\\Desktop\\mys.pdf");
//Create a template of the first page in the PDF
PdfTemplate template = pdf.getPages().get(0).createTemplate();

//Add a layer to the new created PDF
PdfLayer layer1 = target.getLayers().addLayer("Layer 1");
PdfCanvas canvas1 = layer1.createGraphics(page.getCanvas());
//Draw the template to the layer
canvas1.drawTemplate(template, new Point2D.Float(20,50), PdfPageSize.A4);

//Add a layer to the new created PDF
PdfLayer layer2 = target.getLayers().addLayer("Layer 2");
PdfCanvas canvas2 = layer2.createGraphics(page.getCanvas());
//Draw an image to the layer
canvas2.drawImage(PdfImage.fromFile("E:\\1123123.jpg"), new Point2D.Float(155,690), new Dimension(200, 100));

//Add a layer to the new created PDF
PdfLayer layer3 = target.getLayers().addLayer("Layer 3");
PdfCanvas canvas3 = layer2.createGraphics(page.getCanvas());
//Draw an image to the layer
canvas3.drawImage(PdfImage.fromFile("E:\\1123123.jpg"), new Point2D.Float(155,0), new Dimension(200, 100));

//Save the resultant document
target.saveToFile("C:\\Users\\Lenovo\\Desktop\\mys2.pdf");
}

}