'Stack empty' error

The document is transferred to the system, and when trying to view it as pdf, a ‘Stack empty’ error message is encountered.
I attached the original file
YG17205.zip (1.1 MB)

@srmbimser Could you please elaborate your problem a bit more? It is not quite clear how to reproduce the problem. I have successfully converted your document to PDF using the following simple code and the latest 22.4 version of Aspose.Words:

Document doc = new Document("C:\\Temp\\in.docx");
doc.Save("C:\\Temp\\out.pdf");