Hello,
Hi Kees,
Thanks for your inquiry. I have tested your scenario with shared document using Aspose.Pdf for .NET 10.7.0 and managed to observe the reported issue. For further investigation, I have logged an issue in our issue tracking system as PDFNEWNET-39204 and also linked your request to it. We will keep you updated via this thread regarding the issue status.
We are sorry for the inconvenience caused.
Best Regards