Update windows.data.pdf/pdfpage_size.md

Author: alvinashcraft

windows.data.pdf/pdfpage_size.md

@@ -10,7 +10,7 @@ public Windows.Foundation.Size Size { get; }
 # Windows.Data.Pdf.PdfPage.Size
 
 ## -description
-Gets the Portable Document Format (PDF) page's size in device-independent pixels (DIPs) based on its related [CropBox](pdfpagedimensions_cropbox.md), [MediaBox](pdfpagedimensions_mediabox.md), and [Rotation](pdfpage_rotation.md) property values.
+Gets the Portable Document Format (PDF) page's size in device-independent pixels (DIPs) for height and width based on its related [CropBox](pdfpagedimensions_cropbox.md), [MediaBox](pdfpagedimensions_mediabox.md), and [Rotation](pdfpage_rotation.md) property values.
 
 ## -property-value
 The Portable Document Format (PDF) page's computed size.