Get Shapes from Presentation Slide
Aspose.Slides
ISlide slide = pres.getSlides().get_Item(0);
//Accessing source slide shape collection
IShapeCollection sourceShapes = slide.getShapes();
//Iterating through all shapes inside the slide
for (int i = 0; i < sourceShapes.size(); i++)
{
System.out.println(sourceShapes.get_Item(i).getWidth() + " x " +
sourceShapes.get_Item(i).getHeight());
}

Apache POI SL
XSLFSlide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++)
{
XSLFShape[] sh = slide[i].getShapes();
for (int j = 0; j < sh.length; j++)
{
// name of the shape
String name = sh[j].getShapeName();
// shapes's anchor which defines the position of this shape in
// the slide
java.awt.geom.Rectangle2D anchor = sh[j].getAnchor();
if (sh[j] instanceof XSLFConnectorShape)
{
XSLFConnectorShape line = (XSLFConnectorShape) sh[j];
System.out.println("Connector Shape.");
// work with Line
}
else if (sh[j] instanceof XSLFTextShape)
{
XSLFTextShape shape = (XSLFTextShape) sh[j];
System.out.println("Text Shape.");
// work with a shape that can hold text
}
else if (sh[j] instanceof XSLFPictureShape)
{
XSLFPictureShape shape = (XSLFPictureShape) sh[j];
System.out.println("Picture Shape.");
// work with Picture
}
}
}
