<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.doc</artifactId>
        <version>12.4.6</version>
    </dependency>
</dependencies>
    

import com.spire.doc.Document;

public class replaceText {
    public static void main(String[] args) {

        //Create a Document class instance
        Document document = new Document();

        //Load a Word document
        document.loadFromFile("Cave Art.docx");

        //Replace all the matches of text “deer” in the document with new text “buffalo”
        document.replace("deer", "buffalo", false, true);

        //Save the result document
        document.saveToFile("Find&Replace.docx");
    }
}

import com.spire.doc.Document;

public class replaceText {
    public static void main(String[] args) {

        //Create a Document class instance
        Document document = new Document();

        //Load a Word document
        document.loadFromFile("Cave Art.docx");

        //Set the replacement mode as replacing only the first match
        document.setReplaceFirst(true);

        //Replace all the matches of text “deer” in the document with new text “buffalo”
        document.replace("deer", "buffalo", false, true);

        //Save the result document
        document.saveToFile("Find&Replace.docx");
    }
}

import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.documents.TextSelection;
import com.spire.doc.fields.DocPicture;
import com.spire.doc.fields.TextRange;

public class replaceTextWithImage {

    public static void main(String[] args) {

        //Create a Document class instance
        Document document = new Document();

        //Load a Word document
        document.loadFromFile("Cave Art.docx");

        //Find all the strings matching 'deer' in the document
        TextSelection[] selections = document.findAllString("deer", true, true);
        
        //Replace all the matches with the image
        int index = 0;
        TextRange range = null;
        for (Object obj : selections) {

            TextSelection textSelection = (TextSelection)obj;
            
            //Create an object of DocPicture class and load a picture
            DocPicture pic = new DocPicture(document);
            pic.loadImage("deer.png");
            
            range = textSelection.getAsOneRange();
            index = range.getOwnerParagraph().getChildObjects().indexOf(range);
            range.getOwnerParagraph().getChildObjects().insert(index,pic);
            range.getOwnerParagraph().getChildObjects().remove(range);
        }
        
        //Replace a specific match with the picture
        //Create an object of DocPicture class and load a picture
        //DocPicture pic = new DocPicture(document);
        //pic.loadImage("deer.png");
        //Object object = selections[1];
        //TextSelection selection = (TextSelection) object;
        //TextRange textRange = selection.getAsOneRange();
        //int i = textRange.getOwnerParagraph().getChildObjects().indexOf(textRange);
        //textRange.getOwnerParagraph().getChildObjects().insert(i,pic);
        //textRange.getOwnerParagraph().getChildObjects().remove(textRange);

        //Save the document
        document.saveToFile("ReplaceTextWithImage.docx", FileFormat.Docx_2013);
    }
}

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.doc</artifactId>
        <version>12.4.6</version>
    </dependency>
</dependencies>
    

import com.spire.doc.Document;
import java.io.FileWriter;
import java.io.IOException;

public class ExtractText {

    public static void main(String[] args) throws IOException {

        //Create a Document object and load a Word document
        Document document = new Document();
        document.loadFromFile("sample1.docx");

        //Get text from document as string
        String text=document.getText();

        //Write string to a .txt file
        writeStringToTxt(text," ExtractedText.txt");
    }
    public static void writeStringToTxt(String content, String txtFileName) throws IOException{
        FileWriter fWriter= new FileWriter(txtFileName,true);
        try {
            fWriter.write(content);
        }catch(IOException ex){
            ex.printStackTrace();
        }finally{
            try{
                fWriter.flush();
                fWriter.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
}

import com.spire.doc.*;
import com.spire.doc.documents.*;
import com.spire.doc.fields.*;
import com.spire.doc.interfaces.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.*;

public class ExtractImage {
    public static void main(String[] args) throws IOException {

        //Create a Document object and load a Word document
        Document document = new Document();
        document.loadFromFile("sample2.docx");

        //Create a queue and add the root document element to it
        Queue<ICompositeObject> nodes = new LinkedList<>();
        nodes.add(document);

        //Create a ArrayList object to store extracted images
        List<BufferedImage> images = new ArrayList<>();

        //Traverse the document tree
        while (nodes.size() > 0) {
            ICompositeObject node = nodes.poll();
            for (int i = 0; i < node.getChildObjects().getCount(); i++)
            {
                IDocumentObject child = node.getChildObjects().get(i);
                if (child instanceof ICompositeObject)
                {
                    nodes.add((ICompositeObject) child);
                }
                else if (child.getDocumentObjectType() == DocumentObjectType.Picture)
                {
                    DocPicture picture = (DocPicture) child;
                    images.add(picture.getImage());
                }
            }
        }

        //Save images to the specific folder
        for (int i = 0; i < images.size(); i++) {
            File file = new File(String.format("output/extractImage-%d.png", i));
            ImageIO.write(images.get(i), "PNG", file);
        }
    }
}