[Java] Adding Shadow Effects to Shapes in PowerPoint

In a PowerPoint document, adding shadow effects to shapes can enhance the three-dimensional sense of these shapes and make them look more vivid. This article will introduce how to add shadow effects to shapes in PowerPoint by using Free Spire.Presentation for Java. In addition to the PresetShadowEffects shown in this article, you can also add InnerShadowEffect, OuterShadowEffect and SoftEdgeEffect, etc.

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

Method 2: You can also add the jar dependency to your 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.presentation.free</artifactId>
        <version>2.6.1</version>
    </dependency>
</dependencies>

Add Shadow Effect:

import com.spire.presentation.*;
import com.spire.presentation.drawing.*;
import java.awt.*;
import java.awt.geom.Rectangle2D;

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

        //Create a Presentation instance
        Presentation ppt = new Presentation();

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

        //Add a shape to slide.
        Rectangle2D rect = new Rectangle2D.Float(120, 100, 150, 300);
        IAutoShape shape = slide.getShapes().appendShape(ShapeType.RECTANGLE, rect);

        //Fill the shape with a picture
        shape.getFill().setFillType(FillFormatType.PICTURE);
        shape.getFill().getPictureFill().getPicture().setUrl("C:\\Users\\Administrator\\Desktop\\cow.png");
        shape.getLine().setFillType(FillFormatType.NONE);
        shape.getFill().getPictureFill().setFillType(PictureFillType.STRETCH);

        //Set shadow effect
        PresetShadow presetShadow = new PresetShadow();
        presetShadow.setPreset(PresetShadowValue.BACK_RIGHT_PERSPECTIVE);
        presetShadow.getColorFormat().setColor(Color.lightGray);

        //Apply the shadow effect to shape
        shape.getEffectDag().setPresetShadowEffect(presetShadow);

        //Save the document
        ppt.saveToFile("output/ShapeShadow.pptx", FileFormat.PPTX_2013);
    }
}