pectRatio?, ImageOrientation?,
      HorizontalPixelSize?, VerticalPixelSize?,
      HorizontalPhysicalPixelSpacing?, VerticalPhysicalPixelSpacing?,
      HorizontalPosition?, VerticalPosition?, HorizontalPixelOffset?,
      VerticalPixelOffset?, HorizontalScreenSize?, VerticalScreenSize?)&gt;
      &lt;!-- Dimension information --&gt;

      &lt;!ELEMENT "PixelAspectRatio" EMPTY&gt;
        &lt;!-- The width of a pixel divided by its height --&gt;
        &lt;!ATTLIST "PixelAspectRatio" "value" #CDATA #REQ