diff --git a/QRCoder/ArtQRCode.cs b/QRCoder/ArtQRCode.cs
index c1964c93..79a2eddc 100644
--- a/QRCoder/ArtQRCode.cs
+++ b/QRCoder/ArtQRCode.cs
@@ -59,13 +59,13 @@ public Bitmap GetGraphic(Bitmap backgroundImage = null)
         /// <param name="backgroundImageStyle">Style of the background image (if set). Fill=spanning complete graphic; DataAreaOnly=Don't paint background into quietzone</param>
         /// <param name="finderPatternImage">Optional image that should be used instead of the default finder patterns</param>
         /// <returns>QRCode graphic as bitmap</returns>
-        public Bitmap GetGraphic(int pixelsPerModule, Color darkColor, Color lightColor, Color backgroundColor, Bitmap backgroundImage = null, double pixelSizeFactor = 0.8, 
+        public Bitmap GetGraphic(int pixelsPerModule, Color darkColor, Color lightColor, Color backgroundColor, Bitmap backgroundImage = null, double pixelSizeFactor = 1, 
                                  bool drawQuietZones = true, QuietZoneStyle quietZoneRenderingStyle = QuietZoneStyle.Dotted, 
                                  BackgroundImageStyle backgroundImageStyle = BackgroundImageStyle.DataAreaOnly, Bitmap finderPatternImage = null)
         {
             if (pixelSizeFactor > 1)
                 throw new Exception("The parameter pixelSize must be between 0 and 1. (0-100%)");
-            int pixelSize = (int)Math.Min(pixelsPerModule, Math.Floor(pixelsPerModule / pixelSizeFactor));
+            int pixelSize = (int)Math.Min(pixelsPerModule, Math.Floor(pixelsPerModule * pixelSizeFactor));
 
             var numModules = QrCodeData.ModuleMatrix.Count - (drawQuietZones ? 0 : 8);
             var offset = (drawQuietZones ? 0 : 4);
@@ -283,7 +283,7 @@ public static class ArtQRCodeHelper
         /// <param name="finderPatternImage">Optional image that should be used instead of the default finder patterns</param>
         /// <returns>QRCode graphic as bitmap</returns>
         public static Bitmap GetQRCode(string plainText, int pixelsPerModule, Color darkColor, Color lightColor, Color backgroundColor, ECCLevel eccLevel, bool forceUtf8 = false, 
-                                       bool utf8BOM = false, EciMode eciMode = EciMode.Default, int requestedVersion = -1, Bitmap backgroundImage = null, double pixelSizeFactor = 0.8,
+                                       bool utf8BOM = false, EciMode eciMode = EciMode.Default, int requestedVersion = -1, Bitmap backgroundImage = null, double pixelSizeFactor = 1.0,
                                        bool drawQuietZones = true, QuietZoneStyle quietZoneRenderingStyle = QuietZoneStyle.Flat, 
                                        BackgroundImageStyle backgroundImageStyle = BackgroundImageStyle.DataAreaOnly, Bitmap finderPatternImage = null)
         {
@@ -295,4 +295,4 @@ public static Bitmap GetQRCode(string plainText, int pixelsPerModule, Color dark
     }
 }
 
-#endif
\ No newline at end of file
+#endif
diff --git a/QRCoderTests/ArtQRCodeRendererTests.cs b/QRCoderTests/ArtQRCodeRendererTests.cs
index 6657a7f4..b5734eed 100644
--- a/QRCoderTests/ArtQRCodeRendererTests.cs
+++ b/QRCoderTests/ArtQRCodeRendererTests.cs
@@ -83,9 +83,9 @@ public void should_throw_pixelfactor_oor_exception()
         [Category("QRRenderer/ArtQRCode")]
         public void can_instantate_parameterless()
         {
-            var asciiCode = new ArtQRCode();
-            asciiCode.ShouldNotBeNull();
-            asciiCode.ShouldBeOfType<ArtQRCode>();
+            var artCode = new ArtQRCode();
+            artCode.ShouldNotBeNull();
+            artCode.ShouldBeOfType<ArtQRCode>();
         }
 
         [Fact]
@@ -94,7 +94,6 @@ public void can_render_artqrcode_from_helper()
         {
             //Create QR code
             var bmp = ArtQRCodeHelper.GetQRCode("A", 10, Color.Black, Color.White, Color.Transparent, QRCodeGenerator.ECCLevel.L);
-
             var result = HelperFunctions.BitmapToHash(bmp);
             result.ShouldBe("57ecaa9bdeadcdcbeac8a19d734907ff");
         }