PPTX to PDF: Rendered font is different (C# .NET)


I am using Aspose.Slides for .NET v19.12.0 to generate PDF files from PPTX files (I use Presentation.Save(Stream stream, SaveFormat format) method).

Unfortunately content using “Source Sans Pro” font is converted in PDF file with “Source Sans Pro - SemiBold”.

I do not reproduce this behavior when I save the presentation as PDF from Powerpoint.

Do you have any clue ?



I have observed the issue shared by you and request you to please share the source file along with generated PDF from Aspose.Slides and PowerPoint for comparison. We will investigate that on our end to help you out.


You’ll find in the archive the source file along with generated PDF files.

Source Sans Pro Sample.zip (157.5 KB)


I have worked with the sample files. An issue with ID SLIDESNET-41676 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.

The issues you have found earlier (filed as SLIDESNET-41676) have been fixed in this update.