diff --git a/src/UglyToad.PdfPig/Graphics/Operations/PathConstruction/AppendRectangle.cs b/src/UglyToad.PdfPig/Graphics/Operations/PathConstruction/AppendRectangle.cs
index 6276a8d5..5a88bcd9 100644
--- a/src/UglyToad.PdfPig/Graphics/Operations/PathConstruction/AppendRectangle.cs
+++ b/src/UglyToad.PdfPig/Graphics/Operations/PathConstruction/AppendRectangle.cs
@@ -57,9 +57,13 @@
         public void Run(IOperationContext operationContext)
         {
             var lowerLeft = new PdfPoint(LowerLeftX, LowerLeftY);
+            var upperRight = new PdfPoint(LowerLeftX + Width, LowerLeftY + Height);
+
             operationContext.BeginSubpath();
             var lowerLeftTransform = operationContext.CurrentTransformationMatrix.Transform(lowerLeft);
-            operationContext.CurrentPath.Rectangle(lowerLeftTransform.X, lowerLeftTransform.Y, (double)Width, (double)Height);
+            var upperRightTransform = operationContext.CurrentTransformationMatrix.Transform(upperRight);
+
+            operationContext.CurrentPath.Rectangle(lowerLeftTransform.X, lowerLeftTransform.Y, upperRightTransform.X - lowerLeftTransform.X, upperRightTransform.Y - lowerLeftTransform.Y);
         }
 
         /// <inheritdoc />
@@ -83,4 +87,4 @@
             return $"{LowerLeftX} {LowerLeftY} {Width} {Height} {Symbol}";
         }
     }
-}
\ No newline at end of file
+}