Our code uses com.aspose.slides.ISlideCollection#addClone(com.aspose.slides.ISlide) to merge multiple pptx files, and then uses com.aspose.slides.Presentation#save(java.lang.String, int) to save the merged file. This log…...Presentation#save(java.lang.String, int)...IOException { com.aspose.slides.Presentation mergePpt = new com.aspose...