Dear Rajesh,

Thanks for your interest in Aspose.Slides.

The issue of table height exceeding the slide height, when a large text added in table is related to MS PowerPoint.  Please use the following code snippet for cloning the PPTX slide.

            //Opening a PPTX presentation

                        PresentationEX pres=new PresentationEX(“Temp.pptx”);

            //Accessing a slide at index 1

                        SlideEx slide=pres.Slides[1];

            //Cloning the selected slide at the end of the same presentation file

                        pres.Slides.AddClone(slide);

We are sorry for the inconvenience.