public void Apply(
    PdfClearContentOptions options = null
)

Public Sub Apply(
    options As PdfClearContentOptions = Nothing
)

using DevExpress.Pdf;

using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
{

    processor.LoadDocument("output_to_review.pdf");
    PdfDocumentFacade documentFacade = processor.DocumentFacade;

    foreach (var page in documentFacade.Pages)
    {
        var redactionAnnotations = page.Annotations.Where(annotation => annotation.Type == PdfAnnotationType.Redaction).ToList();
        foreach (PdfRedactAnnotationFacade annotation in redactionAnnotations)
        {
            if (annotation.Author == "Jane Doe")
                annotation.Apply();
        }
    }
    processor.SaveDocument("output_applied.pdf");
}

Using processor As New PdfDocumentProcessor()
  Dim documentFacade As PdfDocumentFacade = processor.DocumentFacade
  For Each page In documentFacade.Pages
    Dim redactionAnnotations = page.Annotations.Where(Function(annotation) TypeOf annotation Is PdfRedactAnnotationFacade)
    For Each annotation As PdfRedactAnnotationFacade In redactionAnnotations
      ' Apply redaction from a specific author
      If annotation.Author = "Jane Doe" Then
        annotation.Apply()
      End If
    Next annotation
  Next page
End Using

redactAnnotation.Apply();
}

redactAnnotation.Apply()
Next rect