Replace Image with New Image in Word Using Java

This article will share how to replace an existing image in a Word document with a new image programmatically by using Free Spire.Doc for Java.

Installation
Method 1: Download the Free Spire.Doc for Java and unzip it. Then add the Spire.Doc.jar file to your Java application as dependency.

Method 2: Directly add the jar dependency to maven project by adding the following configurations to the pom.xml.

<repositories>
   <repository>
      <id>com.e-iceblue</id>
      <name>e-iceblue</name>
      <url>http://repo.e-iceblue.com/nexus/content/groups/public/</url>
   </repository>
</repositories>
<dependencies>
   <dependency>
      <groupId>e-iceblue</groupId>
      <artifactId>spire.doc.free</artifactId>
      <version>3.9.0</version>
   </dependency>
</dependencies>

Sample Code

import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.Section;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.fields.DocPicture;

public class ReplaceImages {
    public static void main(String[] args){
        //Load the Word document
        Document doc = new Document();
        doc.loadFromFile("jellyfish.docx");

        //Get the first section
        Section section = doc.getSections().get(0);
        Paragraph para = section.getParagraphs().get(1);

        //Replace the first image in this section with new image
        Object obj = para.getChildObjects().get(0);
        if(obj instanceof DocPicture){
            DocPicture pic = (DocPicture)obj;
            pic.loadImage("C:\\Users\\Administrator\\Desktop\\img1.jpg");
        }

        /*//Replace all images
        for(int i =0;i < section.getParagraphs().getCount();i++){
            Object obj = section.getParagraphs().get(i).getChildObjects();
            if(obj instanceof DocPicture){
                DocPicture pic = (DocPicture)obj;
                pic.loadImage("tp.png");
            }
        }*/

        //Save the resultant document
        doc.saveToFile("ReplaceWithImage.docx", FileFormat.Docx_2013);
        doc.dispose();
    }
}

Before:

After: