I am interested in Aspose.Slides product, but I have a problem with the evalutaion version.
I used your example to convert one ppt to another, but the output file cannot be opened not by PowerPoint 2003 either by other versions.
Can someone give me any support?!
At first, please check if you use lastest 2.5.7 or 2.5.8 releases.
Previous several hot fixes had a bug with reading presentations.
If it doesn’t help please provide code how you create presentation.