The bookmarks inside one PDF document need to be copied to another PDF document (which already exists) with its heirarchy intact (child bookmarks etc). If the target PDF has bookmarks, they should be removed and replaced with the bookmarks from the source PDF. Please use the following library: [login to view URL] which has a 30 day free trial.
The program should be written in C#. You will need to use your own two PDF documents for testing, as the application will be used on copyrighted material.
## Deliverables
Delivery will be a C# console project. After the project is complete, it will be tested over a large number of PDFs to verify its correctness.