Set Text Transparency in PowerPoint Using Java

This article will demonstrate how to set text transparency in PowerPoint using Free Spire.Presentation for Java.

Import jar dependency (2 Methods)
● Download the free library and unzip it. Then add the Spire.Presentation.jar file to your project as dependency.

● 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>3.9.0</version>
    </dependency>
</dependencies>

Sample Code

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

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

public class TextTransparency {

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

        //Create a PowerPoint document
        Presentation presentation = new Presentation();
        presentation.getSlideSize().setType(SlideSizeType.SCREEN_16_X_9);

        //Add a shape
        IAutoShape textbox = presentation .getSlides().get(0).getShapes().appendShape(ShapeType.RECTANGLE,new Rectangle2D.Float(50, 70, 300, 120));
        textbox.getShapeStyle().getLineColor().setColor(new Color(1,1,1,0));
        textbox.getFill().setFillType(FillFormatType.NONE);

        //Remove default paragraphs
        textbox.getTextFrame().getParagraphs().clear();

        //Add three paragraphs and apply colors with different alpha values to the text
        int alpha = 55;
        for (int i = 0; i < 3; i++)
        {
            textbox.getTextFrame().getParagraphs().append(new ParagraphEx());
            textbox.getTextFrame().getParagraphs().get(i).getTextRanges().append(new PortionEx("Text Transparency"));
            textbox.getTextFrame().getParagraphs().get(i).getTextRanges().get(0).getFill().setFillType(FillFormatType.NONE);
            textbox.getTextFrame().getParagraphs().get(i).getTextRanges().get(0).getFill().setFillType(FillFormatType.SOLID);
            textbox.getTextFrame().getParagraphs().get(i).getTextRanges().get(0).getFill().getSolidColor().setColor(new Color(176, 48, 96, alpha));
            alpha += 100;
        }

        //Save to file
        presentation.saveToFile("TextTransparency.pptx", FileFormat.PPTX_2013);
    }
}

Output