//Instantiate Presentation class that represents the PPTX
Presentation pres = new Presentation();

//Get the first slide
ISlide sld = pres.getSlides().get_Item(0);

//Instantiate the Image class
IPPImage imgx = null;

try{
    imgx = pres.getImages().addImage(new FileInputStream(new File("data/pptx4j/greentick.png")));
}
catch(IOException e){}

//Add Picture Frame with height and width equivalent of Picture
sld.getShapes().addPictureFrame(ShapeType.Rectangle, 50, 150, imgx.getWidth(), imgx.getHeight(), imgx);

//Write the PPTX file to disk
pres.save("data/pptx4j/ImageInSlide-Aspose.pptx", SaveFormat.Pptx);

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

    final Logger log = LoggerFactory.getLogger(Pptx4jAddImageToSlide.class);

    // Where will we save our new .pptx?
    String outputfilepath = "data/pptx4j/ImageInSlide-Pptx4j.pptx";

    // Create skeletal package, including a MainPresentationPart and a SlideLayoutPart
    PresentationMLPackage presentationMLPackage = PresentationMLPackage.createPackage(); 

    // Need references to these parts to create a slide
    // Please note that these parts *already exist* - they are
    // created by createPackage() above.  See that method
    // for instruction on how to create and add a part.
    MainPresentationPart pp = (MainPresentationPart)presentationMLPackage.getParts().getParts().get(
            new PartName("/ppt/presentation.xml"));     
    SlideLayoutPart layoutPart = (SlideLayoutPart)presentationMLPackage.getParts().getParts().get(
            new PartName("/ppt/slideLayouts/slideLayout1.xml"));

    // OK, now we can create a slide
    SlidePart slidePart = presentationMLPackage.createSlidePart(pp, layoutPart, 
            new PartName("/ppt/slides/slide1.xml"));

    // Add image part
    File file = new File("data/pptx4j/greentick.png" );
    BinaryPartAbstractImage imagePart 
        = BinaryPartAbstractImage.createImagePart(presentationMLPackage, slidePart, file);


    // Add p:pic to slide
    slidePart.getJaxbElement().getCSld().getSpTree().getSpOrGrpSpOrGraphicFrame().add(
            createPicture(imagePart.getSourceRelationship().getId()));


    // Do it again on another slide
    SlidePart slidePart2 = presentationMLPackage.createSlidePart(pp, layoutPart, 
            new PartName("/ppt/slides/slide2.xml"));
    Relationship rel = slidePart2.addTargetPart(imagePart);

    slidePart2.getJaxbElement().getCSld().getSpTree().getSpOrGrpSpOrGraphicFrame().add(
            createPicture(rel.getId()));

    // All done: save it
    presentationMLPackage.save(new java.io.File(outputfilepath));

    System.out.println("\n\n done .. saved " + outputfilepath);

}   

private static Object createPicture(String relId) throws JAXBException {

    // Create p:pic         
    java.util.HashMap<String, String>mappings = new java.util.HashMap<String, String>();

    mappings.put("id1", "4");
    mappings.put("name", "Picture 3");
    mappings.put("descr", "greentick.png");
    mappings.put("rEmbedId", relId );
    mappings.put("offx", Long.toString(4214812));
    mappings.put("offy", Long.toString(3071812));
    mappings.put("extcx", Long.toString(714375));
    mappings.put("extcy", Long.toString(714375));

    return org.docx4j.XmlUtils.unmarshallFromTemplate(SAMPLE_PICTURE, 
            mappings, Context.jcPML, Pic.class ) ;   


}


private static String SAMPLE_PICTURE =          
      "<p:pic xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\" xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\" xmlns:p=\"http://schemas.openxmlformats.org/presentationml/2006/main\"> "
        + "<p:nvPicPr>"
          + "<p:cNvPr id=\"${id1}\" name=\"${name}\" descr=\"${descr}\"/>"
          + "<p:cNvPicPr>"
            + "<a:picLocks noChangeAspect=\"1\"/>"
          + "</p:cNvPicPr>"
          + "<p:nvPr/>"
        + "</p:nvPicPr>"
        + "<p:blipFill>"
          + "<a:blip r:embed=\"${rEmbedId}\" cstate=\"print\"/>"
          + "<a:stretch>"
            + "<a:fillRect/>"
          + "</a:stretch>"
        + "</p:blipFill>"
        + "<p:spPr>"
          + "<a:xfrm>"
            + "<a:off x=\"${offx}\" y=\"${offy}\"/>"
            + "<a:ext cx=\"${extcx}\" cy=\"${extcy}\"/>"
          + "</a:xfrm>"
          + "<a:prstGeom prst=\"rect\">"
            + "<a:avLst/>"
          + "</a:prstGeom>"
        + "</p:spPr>"
      + "</p:pic>";