Apply Theme in PowerPoint Presentations using Java

readme.md

Learn how to apply themes in PowerPoint presentations using Java: https://blog.aspose.com/2021/08/16/apply-theme-in-powerpoint-using-java/

set-theme-background.java

// Load or create presentation
Presentation pres = new Presentation("pres.pptx");
try {
    // Get available styles
    int numberOfBackgroundFills = pres.getMasterTheme().getFormatScheme().getBackgroundFillStyles().size();
    System.out.println("Number of background fill styles for theme is " + numberOfBackgroundFills);
  
    // Set style
    pres.getMasters().get_Item(0).getBackground().setStyleIndex(2);

    // Save presentation
    pres.save("out.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

set-theme-color.java

// Load or create presentation
Presentation pres = new Presentation();
try {
    // Add a shape
    IAutoShape shape = pres.getSlides().get_Item(0).getShapes().addAutoShape(ShapeType.Rectangle, 10, 10, 100, 100);

    // Set fill type
    shape.getFillFormat().setFillType(FillType.Solid);
  
    // Set scheme color
    shape.getFillFormat().getSolidFillColor().setSchemeColor(SchemeColor.Accent4);
    
    // Save presentation
    pres.save("out.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

set-theme-font.java

// Load or create presentation
Presentation pres = new Presentation();
try {
      // Add shape
      IAutoShape shape = pres.getSlides().get_Item(0).getShapes().addAutoShape(ShapeType.Rectangle, 10, 10, 100, 100);

      // Add paragraph and set text
      Paragraph paragraph = new Paragraph();
      Portion portion = new Portion("Theme text format");
      paragraph.getPortions().add(portion);
      shape.getTextFrame().getParagraphs().add(paragraph);

      // Set font
      portion.getPortionFormat().setLatinFont(new FontData("+mn-lt"));
  
      // Save presentation
      pres.save("out.pptx", SaveFormat.Pptx);
}