Thanks for contacting us.
To remove the built-in page number indicator, see:
As for the binding part, are you using the binding project we provided in the download package? (in samples\PDFNetiOSXamarinSample\Tools folder)
If so, the binding has not changed recently, you can simply replace your libTools.a with the package version (in lib\ios\Native folder).
Then building the binding project should produce a Tools.dll that you can use in your app.
If any of the step above is blocking you, could we get the exact details for the problem? Compiling error? Missing certain files?
Any details will allow us to better assist you.