Hi,
We are facing Startxref not found problem with one of our clients While performing mail merge. Here is the Reproduction of issue . Please take a look and get back to us with a resolution.
It seems like the PDF generated by Aspose.Words is damaged or corrupted which is causing the exception. We were also unable to open the PDF in Adobe Reader. We are moving the post in Aspose.Words category where this case will be investigated accordingly and you will be updated shortly.
We have tested the scenario using Aspose.Words for .NET 20.8 and Aspose.PDF for .NET 20.7. We were not able to notice any issue. Please try with latest version of Aspose.Words for .NET and in case you still face any issue, please let us know.