I am using the PTDocumentController to display the a PDF file but I want to remove the annotation drop down and toolbar. Below is the code that I have tried but it is not working.

        var annotationToolbar = new pdftron.PDF.Controls.PTAnnotationToolbar(mToolManager);
        annotationToolbar.AnnotationToolbarDidCancel += (sender, e) =>
        {
            annotationToolbar.Hidden = true;
        };