How to Add Image in Pdf File Using Java

iText - Adding Image to a PDF

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In this chapter, we will see how to add an image to a PDF document using the iText library.

Adding Image to a Pdf

You can create an empty PDF Document by instantiating the Document class. While instantiating this class, you need to pass a PdfDocument object as a parameter, to its constructor. To add image to the PDF, create an object of the image that is required to be added and add it using the add() method of the Document class.

Following are the steps to add an image to the PDF document.

Step 1: Creating a PdfWriter object

The PdfWriter class represents the DocWriter for a PDF. This class belongs to the package com.itextpdf.kernel.pdf. The constructor of this class accepts a string, representing the path of the file where the PDF is to be created.

Instantiate the PdfWriter class by passing a string value (representing the path where you need to create a PDF) to its constructor, as shown below.

// Creating a PdfWriter  String dest = "C:/itextExamples/addingImage.pdf";  PdfWriter writer = new PdfWriter(dest);        

When an object of this type is passed to a PdfDocument (class), every element added to this document will be written to the file specified.

Step 2: Creating a PdfDocument object

The PdfDocument class is the class that represents the PDF Document in iText. This class belongs to the package com.itextpdf.kernel.pdf. To instantiate this class (in writing mode), you need to pass an object of the class PdfWriter to its constructor.

Instantiate the PdfDocument class by passing the above created PdfWriter object to its constructor, as shown below.

// Creating a PdfDocument   PdfDocument pdfDoc = new PdfDocument(writer);        

Once a PdfDocument object is created, you can add various elements like page, font, file attachment, and event handler using the respective methods provided by its class.

Step 3: Creating the Document object

The Document class of the package com.itextpdf.layout is the root element while creating a self-sufficient PDF. One of the constructors of this class accepts an object of the class PdfDocument.

Instantiate the Document class by passing the object of the class PdfDocument created in the previous steps, as shown below.

// Creating a Document   Document  document = new Document(pdfDoc);        

Step 4: Creating an Image object

To create the image object, first of all, create an ImageData object using the create() method of the ImageDataFactory class. As a parameter of this method, pass a string parameter representing the path of the image, as shown below.

// Creating an ImageData object  String imageFile = "C:/itextExamples/javafxLogo.jpg";  ImageData data = ImageDataFactory.create(imageFile);        

Now, instantiate the Image class of the com.itextpdf.layout.element package. While instantiating, pass the above created ImageData object as a parameter to its constructor, as shown below.

// Creating an Image object  Image img = new Image(data);        

Step 5: Adding image to the document

Add the image object created in the previous step using the add() method of the Document class, as shown below.

// Adding image to the document  document.add(img);        

Step 6: Closing the Document

Close the document using the close() method of the Document class, as shown below.

// Closing the document  document.close();        

Example

The following Java program demonstrates how to add an image to a PDF document using the iText library. It creates a PDF document with the name addingImage.pdf, adds an image to it, and saves it in the path C:/itextExamples/.

Save this code in a file with name AddingImage.java.

import com.itextpdf.io.image.ImageData;  import com.itextpdf.io.image.ImageDataFactory;   import com.itextpdf.kernel.pdf.PdfDocument;  import com.itextpdf.kernel.pdf.PdfWriter;  import com.itextpdf.layout.Document;  import com.itextpdf.layout.element.Image;    public class AddingImage {          public static void main(String args[]) throws Exception {                            // Creating a PdfWriter              String dest = "C:/itextExamples/addingImage.pdf";              PdfWriter writer = new PdfWriter(dest);                      // Creating a PdfDocument              PdfDocument pdf = new PdfDocument(writer);                            // Creating a Document               Document document = new Document(pdf);                            // Creating an ImageData object              String imFile = "C:/itextExamples/logo.jpg";              ImageData data = ImageDataFactory.create(imFile);                            // Creating an Image object               Image image = new Image(data);                                      // Adding image to the document              document.add(image);                            // Closing the document              document.close();                            System.out.println("Image added");        }  }        

Compile and execute the saved Java file from the Command prompt using the following commands −

javac AddingImage.java  java AddingImage        

Upon execution, the above program creates a PDF document displaying the following message.

Image added        

If you verify the specified path, you can find the created PDF document, as shown below.

How to Add Image in Pdf File Using Java

Source: https://www.tutorialspoint.com/itext/itext_adding_image_to_pdf.htm

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