Hi,
Thank you for your interest in Syncfusion products.
I am afraid I am not able to reproduce the issue. I created a header and filled document with different Images, text but I am unable to reproduce the issue.
Here is the sample document for your reference.
http://www.syncfusion.com/Support/user/uploads/SampleDocument_92dd656.zipHere is the sample program for your reference.
http://websamples.syncfusion.com/samples/DocIO.Windows/F_60708/main.htmIf you still face the same issue, Can you please send your sample program and also the version of Essential Studio and Ms-Word so that we can investigate further on this issue.
Please let me know if you face any issues.
Regards,
Sarath