public static void FacadesApproach()
{
// ExStart:FacadesApproach
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Annotations();
Aspose.Pdf.Facades.PdfAnnotationEditor editor = new Aspose.Pdf.Facades.PdfAnnotationEditor();
// Redact certain page region
editor.RedactArea(1, new Aspose.Pdf.Rectangle(100, 100, 20, 70), System.Drawing.Color.White);
editor.BindPdf(dataDir + "input.pdf");
editor.Save( dataDir + "FacadesApproach_out.pdf");
// ExEnd:FacadesApproach
}
}