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 mergePpt = new com.aspose.slides.Presentation();...List<ISlideCollection> iSlides = new ArrayList<>(); if (!CollectionUtils...