Dear Aspose,
Please see the difference in PPT appearance seen on desktop also in SharePoint (PowerPoint-Online) versus results provided by Aspose.Slides.
We have used Windows and Aspose.Slides version 24.10
Including image describing difference (see all text aligned on top left):
Bug-1150735-Header-causing-text-misalignment-Difference.png (45.3 KB)
Attaching sample application which was used to provide those results:
Bug-1150735-Header-causing-text-misalignment.zip (86.1 KB)
Thanks for looking.
Best Regards
Pavel