I can confirm that I can open the pptx with MS PowerPoint 2016 on Windows and with LiberOffice Impress 188.8.131.52 on Linux and I am able to save the embedded emf image into a standalone emf image on both platforms. So from my point of view this pptx file is valid.
However, if by “I am unable to access any image in the shared PPTX” you actually mean that you are unable to do that by using Aspose APIs, I can confirm that it seems a valid issue that I already reported alongside this issue at
I meant to say that I am unable to extract the EMF image using provided sample project from a PowerPoint presentation that you have shared. It returns 0 image. Therefore, Aspose.Imaging doesn’t proceed further with saving of image to validate the image save exception.
I agree with your investigation. However, there is no source EMF image extracted on my end from PowerPoint presentation. Therefore, I have requested you to please share the source EMF (not the one in PowerPoint) that I may use to verify and log the issue.
I have created a ticket with ID IMAGINGNET-4466 in our issue tracking system after reproducing the issue on saving EMF using Aspose.Imaging for .NET 21.4. This thread has been linked with the issue so that you may be notified once the issue will be fixed.