XMLSlideShow ppt = new XMLSlideShow(); // Creating an empty presentation if (!powerpoints.isEmpty()) { for (String arg : powerpoints) { FileInputStream inputstream = new FileInputStream(arg); XMLSlideShow src = new XMLSlideShow(inputstream); ppt.setPageSize(src.getPageSize()); for (XSLFSlide srcSlide : src.getSlides()) { ppt.createSlide().importContent(srcSlide); } src.close(); inputstream.close(); } String mergedFile = intropath + “PowerPoints/result1.pptx”; FileOutputStream out = new FileOutputStream(mergedFile); ppt.write(out); ppt.close(); out.close(); […]