I am using a Windows 7 64-bit system with 16 GB RAM with 2.4 GHz i7 processor.
I have timed 2 different codes. One creates a PDF from the PPT and another just extracts slides and iterates over each one. I have also attached the sample.
Aspose.slides 8.4.0:-
Total time is 759
long startTime = System.currentTimeMillis();
Presentation presentation = new Presentation(inputFile);
Slides slides = presentation.getSlides();
int slideCount = slides.getCount();
Point point = new Point(presentation.getSlideSize().width, presentation.getSlideSize().height) ;
for(int i=0 ; i<slideCount-1; i++)
{
Slide slide = slides.get_Item(i);
}
long endtime = System.currentTimeMillis();
System.out.println("Total time is "+ (endtime - startTime));
Total time is 6431
long startTime = System.currentTimeMillis();
Presentation presentation = new Presentation(inputFile);
presentation.save(outputFile, SaveFormat.Pdf);
long endtime = System.currentTimeMillis();
System.out.println("Total time is "+ (endtime - startTime));
Aspose.slides 14.6:-
Total time is 1718
long startTime = System.currentTimeMillis();
Presentation pptPresentation = new Presentation(inputFile);
ISlideCollection slideCollection = pptPresentation.getSlides();
int slideCount = slideCollection.size();
Point point = new Point(Math.abs((int)pptPresentation.getSlideSize().getSize().getWidth()), Math.abs((int)pptPresentation.getSlideSize().getSize().getHeight())) ;
for(int i=0; i<slideCount-1; i++)
{
Slide slide = (Slide)slideCollection.get_Item(i);
}
long endtime = System.currentTimeMillis();
System.out.println("Total time is "+ (endtime - startTime));
Total time is 8389
long startTime = System.currentTimeMillis();
Presentation presentation = new Presentation(inputFile);
presentation.save(outputFile, SaveFormat.Pdf);
long endtime = System.currentTimeMillis();
System.out.println("Total time is "+ (endtime - startTime));