Apose exception for PDF export

I amgetting below error
System.InvalidOperationException: Invalid document model. Operation can not be completed.

@ravibaburali

To ensure a timely and accurate response, please attach the following resources here for testing:

  • Your input PDF file.
  • Please create a standalone console application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing.

As soon as you get these pieces of information ready, we will start investigation into your issue and provide you more information. Thanks for your cooperation.

PS: To attach these resources, please zip and upload them.