Index: Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs
===================================================================
diff -u -r2d7021057869098254eacbaa264622956f49a870 -r26534f9dd1772ce4464717c45c147d4426d20df4
--- Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs	(.../FontHelper.cs)	(revision 2d7021057869098254eacbaa264622956f49a870)
+++ Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs	(.../FontHelper.cs)	(revision 26534f9dd1772ce4464717c45c147d4426d20df4)
@@ -83,15 +83,15 @@
                 throw new ArgumentNullException(nameof(unicode));
             }
 
-            var bitmap = new Bitmap(51, 51);
-            Graphics graphics = Graphics.FromImage(bitmap);
+            var bitmap = new Bitmap(4096, 4096);
+            using (Graphics graphics = Graphics.FromImage(bitmap))
+            {
+                graphics.SmoothingMode = SmoothingMode.HighQuality;
+                graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
+                graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
+                graphics.DrawString(unicode, new Font(font.FontFamily, 2600), Brushes.Black, 0, 0);
+            }
 
-            graphics.SmoothingMode = SmoothingMode.HighQuality;
-            graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
-            graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
-            graphics.DrawString(unicode, new Font(font.FontFamily, 48, GraphicsUnit.Pixel), Brushes.Black, 0, 0);
-            graphics.Flush();
-
             return bitmap;
         }
 
Index: Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs
===================================================================
diff -u -r2d7021057869098254eacbaa264622956f49a870 -r26534f9dd1772ce4464717c45c147d4426d20df4
--- Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs	(.../FontHelperTest.cs)	(revision 2d7021057869098254eacbaa264622956f49a870)
+++ Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs	(.../FontHelperTest.cs)	(revision 26534f9dd1772ce4464717c45c147d4426d20df4)
@@ -105,8 +105,8 @@
             Bitmap bitmap = FontHelper.CreateBitmapFromFont(font, "I");
 
             // Assert
-            Assert.AreEqual(51, bitmap.Height);
-            Assert.AreEqual(51, bitmap.Width);
+            Assert.AreEqual(4096, bitmap.Height);
+            Assert.AreEqual(4096, bitmap.Width);
         }
     }
 }
\ No newline at end of file