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Aspose.Slides hangs when trying to get slide's thumbnail using C#


we are facing a freeze problem with some customer PPTX files.
The Apose.Slides version we use is latest v19.6.0. The problem occurs with both demo and licensed version.
I created and uploaded a small repro project to

When running the Debug build, it will try to convert the slide to an image when you click on Convert!.
An affected PPTX file is located under bin\Debug.
The application will hang indefinitely in the call to IAsposeSlide.GetThumbnail().

Please let me know if you need any further information.

Thank you and best Regards,
Kevin Fucik


I have worked with the sample code and presentation file shared by you and have been able to observe the issue specified. An issue with ID SLIDESNET-41256 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.

Is the problem supposed to be fixed in new version v19.7.0? Is just installed it and the freeze still occurs.


The issue will be resolved in 19.8. We will share good news with you soon.

The issues you have found earlier (filed as SLIDESNET-41256) have been fixed in this update.