import com.spire.presentation.*;

import java.util.HashMap;
import java.util.Map;

public class ReplaceText {

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

        //create a Presentation object
        Presentation presentation = new Presentation();

        //load the template file
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

        //get the first slide
        ISlide slide= presentation.getSlides().get(0);

        //create a Map object
        Map map = new HashMap();

        //add several pairs of keys and values to the map
        map.put("#name#","John Smith");
        map.put("#age#","28");
        map.put("#address#","Oklahoma City, United States");
        map.put("#tel#","333 123456");
        map.put("#email#","johnsmith@outlook.com");

        //replace text in the slide
        replaceText(slide,map);

        //save to another file
        presentation.saveToFile("output/ReplaceText.pptx", FileFormat.PPTX_2013);
    }

    /**
     * Replace text within a slide
     * @param slide Specifies the slide where the replacement happens
     * @param map Where keys are existing strings in the document and values are the new strings to replace the old ones
     */
     public static void replaceText(ISlide slide, Map<String,String> map) {

        for (Object shape : slide.getShapes()
        ) {
            if (shape instanceof IAutoShape) {

                for (Object paragraph : ((IAutoShape) shape).getTextFrame().getParagraphs()
                ) {
                    ParagraphEx paragraphEx = (ParagraphEx)paragraph;
                    for (String key : map.keySet()
                    ) {
                        if (paragraphEx.getText().contains(key)) {

                            paragraphEx.setText(paragraphEx.getText().replace(key, map.get(key)));
                         }
                    }
                }
            }
        }
    }
}

import com.spire.presentation.*;
import com.spire.presentation.drawing.FillFormatType;

import java.awt.*;
import java.awt.geom.Rectangle2D;

public class SetAltText {
    public static void main(String[] args) throws Exception {
        //instantiate a Presentation object
        Presentation ppt = new Presentation();

        //add a shape to the first slide
        IAutoShape shape = ppt.getSlides().get(0).getShapes().appendShape(ShapeType.TRIANGLE, new Rectangle2D.Double(115, 130, 100, 100));
        shape.getFill().setFillType(FillFormatType.SOLID);
        shape.getFill().getSolidColor().setColor(Color.orange);
        shape.getShapeStyle().getLineColor().setColor(Color.white);

        //set alt text (title and description) for the shape
        shape.setAlternativeTitle("Triangle");
        shape.setAlternativeText("This is a triangle.");

        //save the resultant document
        ppt.saveToFile("Output.pptx", FileFormat.PPTX_2013);
    }
}

import com.spire.presentation.*;

public class GetAltText {
    public static void main(String[] args) throws Exception {
        //load PowerPoint document
        Presentation ppt = new Presentation();
        ppt.loadFromFile("Output.pptx");

        //get the first shape in the first slide
        IShape shape = ppt.getSlides().get(0).getShapes().get(0);

        //get the alt text (title and description) of the shape
        String altTitle = shape.getAlternativeTitle();
        String altDescription = shape.getAlternativeText();

        System.out.println("Title: " + altTitle);
        System.out.println("Description: " + altDescription);
    }
}

import com.spire.presentation.*;
import com.spire.presentation.drawing.IImageData;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;

public class ReplaceImage {

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

        //create a Presentation object
        Presentation presentation= new Presentation();

        //load the sample PowerPoint file
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

        //add an image to the image collection
        String imagePath = "C:\\Users\\Administrator\\Desktop\\Microsoft-PowerPoint-logo.jpg";
        BufferedImage bufferedImage = ImageIO.read(new FileInputStream(imagePath));
        IImageData image = presentation.getImages().append(bufferedImage);

        //get the shape collection from the first slide
        ShapeCollection shapes = presentation.getSlides().get(0).getShapes();

        //loop through the shape collection
        for (int i = 0; i < shapes.getCount(); i++) {

            //determine if a shape is a picture
            if (shapes.get(i) instanceof SlidePicture) {

                //fill the shape with a new image
               ((SlidePicture) shapes.get(i)).getPictureFill().getPicture().setEmbedImage(image);
            }
        }
        
        //save to file
        presentation.saveToFile("output/ReplaceImage.pptx", FileFormat.PPTX_2013);
    }
}