Issues while Upgrading from V 4.7.0 to the latest version

Hello Ryan,
We were upgrading our PDFNet version 4.7.0 to the latest in our Visual Studio Application. I am facing a lot of issues as there are some classes removed/added. Could you help me in upgradation of our application in the most efficient way.?

It would be best if you sent the errors, clearly separated, then we can assist with migrating to the new API, one by one.