diff --git a/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs b/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs
deleted file mode 100644
index ab43bd92b..000000000
--- a/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs
+++ /dev/null
@@ -1,83 +0,0 @@
-// --------------------------------------------------------------------------------------------------------------------
-// <copyright file="StringExtensionsUnitTests.cs" company="James South">
-//   Copyright (c) James South.
-//   Licensed under the Apache License, Version 2.0.
-// </copyright>
-// <summary>
-//   Provides a test harness for the string extensions
-// </summary>
-// --------------------------------------------------------------------------------------------------------------------
-
-namespace ImageProcessor.UnitTests.Extensions
-{
-    using System.Collections.Generic;
-    using ImageProcessor.Common.Extensions;
-    using NUnit.Framework;
-
-    /// <summary>
-    /// Test harness for the string extensions
-    /// </summary>
-    [TestFixture]
-    public class StringExtensionsUnitTests
-    {
-        /// <summary>
-        /// Tests the passing to an integer array
-        /// </summary>
-        [Test]
-        public void TestToIntegerArray()
-        {
-            Dictionary<string, int[]> data = new Dictionary<string, int[]>
-            {
-                {
-                    "123-456,78-90",
-                    new[] { 123, 456, 78, 90 }
-                },
-                {
-                    "87390174,741897498,74816,748297,57355",
-                    new[]
-                        {
-                            87390174, 741897498, 74816,
-                            748297, 57355
-                        }
-                },
-                { "1-2-3", new[] { 1, 2, 3 } }
-            };
-
-            foreach (KeyValuePair<string, int[]> item in data)
-            {
-                int[] result = item.Key.ToPositiveIntegerArray();
-                Assert.AreEqual(item.Value, result);
-            }
-        }
-
-        /// <summary>
-        /// Tests the passing to an float array
-        /// </summary>
-        [Test]
-        public void TestToFloatArray()
-        {
-            Dictionary<string, float[]> data = new Dictionary<string, float[]>
-            {
-                {
-                    "12.3-4.56,78-9.0",
-                    new[] { 12.3F, 4.56F, 78, 9 }
-                },
-                {
-                    "87390.174,7.41897498,748.16,748297,5.7355",
-                    new[]
-                        {
-                            87390.174F, 7.41897498F,
-                            748.16F, 748297, 5.7355F
-                        }
-                },
-                { "1-2-3", new float[] { 1, 2, 3 } }
-            };
-
-            foreach (KeyValuePair<string, float[]> item in data)
-            {
-                float[] result = item.Key.ToPositiveFloatArray();
-                Assert.AreEqual(item.Value, result);
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj b/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
index 5b6bc12d1..930267a63 100644
--- a/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
+++ b/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
@@ -48,7 +48,6 @@
     </Compile>
     <Compile Include="Extensions\DoubleExtensionsUnitTests.cs" />
     <Compile Include="Extensions\IntegerExtensionsUnitTests.cs" />
-    <Compile Include="Extensions\StringExtensionsUnitTests.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
@@ -130,7 +129,5 @@
     <Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
   </Target>
   <ItemGroup />
-  <ItemGroup>
-    <Folder Include="Extensions\" />
-  </ItemGroup>
+  <ItemGroup />
 </Project>
\ No newline at end of file
diff --git a/src/ImageProcessor.Web.UnitTests/Extensions/StringExtensionsUnitTests.cs b/src/ImageProcessor.Web.UnitTests/Extensions/StringExtensionsUnitTests.cs
index 57c261c7b..3e9053aed 100644
--- a/src/ImageProcessor.Web.UnitTests/Extensions/StringExtensionsUnitTests.cs
+++ b/src/ImageProcessor.Web.UnitTests/Extensions/StringExtensionsUnitTests.cs
@@ -11,6 +11,8 @@
 namespace ImageProcessor.Web.UnitTests.Extensions
 {
     using System;
+    using System.Collections.Generic;
+
     using ImageProcessor.Web.Extensions;
     using NUnit.Framework;
 
@@ -20,6 +22,66 @@ namespace ImageProcessor.Web.UnitTests.Extensions
     [TestFixture]
     public class StringExtensionsUnitTests
     {
+        /// <summary>
+        /// Tests the passing to an integer array
+        /// </summary>
+        [Test]
+        public void TestToIntegerArray()
+        {
+            Dictionary<string, int[]> data = new Dictionary<string, int[]>
+            {
+                {
+                    "123-456,78-90",
+                    new[] { 123, 456, 78, 90 }
+                },
+                {
+                    "87390174,741897498,74816,748297,57355",
+                    new[]
+                        {
+                            87390174, 741897498, 74816,
+                            748297, 57355
+                        }
+                },
+                { "1-2-3", new[] { 1, 2, 3 } }
+            };
+
+            foreach (KeyValuePair<string, int[]> item in data)
+            {
+                int[] result = item.Key.ToPositiveIntegerArray();
+                Assert.AreEqual(item.Value, result);
+            }
+        }
+
+        /// <summary>
+        /// Tests the passing to an float array
+        /// </summary>
+        [Test]
+        public void TestToFloatArray()
+        {
+            Dictionary<string, float[]> data = new Dictionary<string, float[]>
+            {
+                {
+                    "12.3-4.56,78-9.0",
+                    new[] { 12.3F, 4.56F, 78, 9 }
+                },
+                {
+                    "87390.174,7.41897498,748.16,748297,5.7355",
+                    new[]
+                        {
+                            87390.174F, 7.41897498F,
+                            748.16F, 748297, 5.7355F
+                        }
+                },
+                { "1-2-3", new float[] { 1, 2, 3 } }
+            };
+
+            foreach (KeyValuePair<string, float[]> item in data)
+            {
+                float[] result = item.Key.ToPositiveFloatArray();
+                Assert.AreEqual(item.Value, result);
+            }
+        }
+
         /// <summary>
         /// Tests the MD5 fingerprint
         /// </summary>
diff --git a/src/ImageProcessor.Web/NET4/ImageProcessor.Web_NET4.csproj b/src/ImageProcessor.Web/NET4/ImageProcessor.Web_NET4.csproj
index d830257ae..82d3986a7 100644
--- a/src/ImageProcessor.Web/NET4/ImageProcessor.Web_NET4.csproj
+++ b/src/ImageProcessor.Web/NET4/ImageProcessor.Web_NET4.csproj
@@ -98,6 +98,9 @@
     <Compile Include="..\NET45\Extensions\DirectoryInfoExtensions.cs">
       <Link>DirectoryInfoExtensions.cs</Link>
     </Compile>
+    <Compile Include="..\NET45\Extensions\StringExtensions.cs">
+      <Link>StringExtensions.cs</Link>
+    </Compile>
     <Compile Include="..\NET45\Helpers\CommonParameterParserUtility.cs">
       <Link>CommonParameterParserUtility.cs</Link>
     </Compile>
diff --git a/src/ImageProcessor.Web/NET45/Caching/DiskCache.cs b/src/ImageProcessor.Web/NET45/Caching/DiskCache.cs
index 6a23d48ad..be6b88744 100644
--- a/src/ImageProcessor.Web/NET45/Caching/DiskCache.cs
+++ b/src/ImageProcessor.Web/NET45/Caching/DiskCache.cs
@@ -20,7 +20,6 @@ namespace ImageProcessor.Web.Caching
     using System.Web;
     using System.Web.Hosting;
 
-    using ImageProcessor.Common.Extensions;
     using ImageProcessor.Web.Configuration;
     using ImageProcessor.Web.Extensions;
     using ImageProcessor.Web.Helpers;
@@ -245,7 +244,7 @@ namespace ImageProcessor.Web.Caching
                                 fileInfo.Delete();
                                 count -= 1;
                             }
-                                // ReSharper disable once EmptyGeneralCatchClause
+                            // ReSharper disable once EmptyGeneralCatchClause
                             catch
                             {
                                 // Do nothing; skip to the next file.
diff --git a/src/ImageProcessor.Web/NET45/Helpers/CommonParameterParserUtility.cs b/src/ImageProcessor.Web/NET45/Helpers/CommonParameterParserUtility.cs
index ae71ca7ef..505d80d99 100644
--- a/src/ImageProcessor.Web/NET45/Helpers/CommonParameterParserUtility.cs
+++ b/src/ImageProcessor.Web/NET45/Helpers/CommonParameterParserUtility.cs
@@ -17,6 +17,7 @@ namespace ImageProcessor.Web.Helpers
 
     using ImageProcessor.Common.Extensions;
     using ImageProcessor.Imaging;
+    using ImageProcessor.Web.Extensions;
 
     /// <summary>
     /// Encapsulates methods to correctly parse querystring parameters.
diff --git a/src/ImageProcessor.Web/NET45/Processors/Crop.cs b/src/ImageProcessor.Web/NET45/Processors/Crop.cs
index c621ebd1a..c669c8e1b 100644
--- a/src/ImageProcessor.Web/NET45/Processors/Crop.cs
+++ b/src/ImageProcessor.Web/NET45/Processors/Crop.cs
@@ -13,9 +13,9 @@ namespace ImageProcessor.Web.Processors
     using System.Text;
     using System.Text.RegularExpressions;
 
-    using ImageProcessor.Common.Extensions;
     using ImageProcessor.Imaging;
     using ImageProcessor.Processors;
+    using ImageProcessor.Web.Extensions;
 
     /// <summary>
     /// Crops an image to the given directions.
diff --git a/src/ImageProcessor.Web/NET45/Processors/Resize.cs b/src/ImageProcessor.Web/NET45/Processors/Resize.cs
index 95d962958..09ce9bc3c 100644
--- a/src/ImageProcessor.Web/NET45/Processors/Resize.cs
+++ b/src/ImageProcessor.Web/NET45/Processors/Resize.cs
@@ -17,9 +17,9 @@ namespace ImageProcessor.Web.Processors
     using System.Text;
     using System.Text.RegularExpressions;
 
-    using ImageProcessor.Common.Extensions;
     using ImageProcessor.Imaging;
     using ImageProcessor.Processors;
+    using ImageProcessor.Web.Extensions;
 
     /// <summary>
     /// Resizes an image to the given dimensions.
diff --git a/src/ImageProcessor.Web/NET45/Processors/Watermark.cs b/src/ImageProcessor.Web/NET45/Processors/Watermark.cs
index 27e83e288..d87f09388 100644
--- a/src/ImageProcessor.Web/NET45/Processors/Watermark.cs
+++ b/src/ImageProcessor.Web/NET45/Processors/Watermark.cs
@@ -15,9 +15,9 @@ namespace ImageProcessor.Web.Processors
     using System.Linq;
     using System.Text.RegularExpressions;
 
-    using ImageProcessor.Common.Extensions;
     using ImageProcessor.Imaging;
     using ImageProcessor.Processors;
+    using ImageProcessor.Web.Extensions;
     using ImageProcessor.Web.Helpers;
 
     /// <summary>
diff --git a/src/ImageProcessor/Common/Extensions/StringExtensions.cs b/src/ImageProcessor/Common/Extensions/StringExtensions.cs
deleted file mode 100644
index f315df797..000000000
--- a/src/ImageProcessor/Common/Extensions/StringExtensions.cs
+++ /dev/null
@@ -1,80 +0,0 @@
-// --------------------------------------------------------------------------------------------------------------------
-// <copyright file="StringExtensions.cs" company="James South">
-//   Copyright (c) James South.
-//   Licensed under the Apache License, Version 2.0.
-// </copyright>
-// <summary>
-//   Encapsulates a series of time saving extension methods to the <see cref="T:System.String" /> class.
-// </summary>
-// --------------------------------------------------------------------------------------------------------------------
-
-namespace ImageProcessor.Common.Extensions
-{
-    using System;
-    using System.Globalization;
-    using System.Text.RegularExpressions;
-
-    /// <summary>
-    /// Encapsulates a series of time saving extension methods to the <see cref="T:System.String"/> class.
-    /// </summary>
-    public static class StringExtensions
-    {
-        /// <summary>
-        /// Creates an array of integers scraped from the String.
-        /// </summary>
-        /// <param name="expression">The <see cref="T:System.String">String</see> instance that this method extends.</param>
-        /// <returns>An array of integers scraped from the String.</returns>
-        public static int[] ToPositiveIntegerArray(this string expression)
-        {
-            if (string.IsNullOrWhiteSpace(expression))
-            {
-                throw new ArgumentNullException("expression");
-            }
-
-            Regex regex = new Regex(@"[\d+]+(?=[,-])|[\d+]+(?![,-])", RegexOptions.Compiled);
-
-            MatchCollection matchCollection = regex.Matches(expression);
-
-            // Get the collections.
-            int count = matchCollection.Count;
-            int[] matches = new int[count];
-
-            // Loop and parse the int values.
-            for (int i = 0; i < count; i++)
-            {
-                matches[i] = int.Parse(matchCollection[i].Value, CultureInfo.InvariantCulture);
-            }
-
-            return matches;
-        }
-
-        /// <summary>
-        /// Creates an array of floats scraped from the String.
-        /// </summary>
-        /// <param name="expression">The <see cref="T:System.String">String</see> instance that this method extends.</param>
-        /// <returns>An array of floats scraped from the String.</returns>
-        public static float[] ToPositiveFloatArray(this string expression)
-        {
-            if (string.IsNullOrWhiteSpace(expression))
-            {
-                throw new ArgumentNullException("expression");
-            }
-
-            Regex regex = new Regex(@"[\d+\.]+(?=[,-])|[\d+\.]+(?![,-])", RegexOptions.Compiled);
-
-            MatchCollection matchCollection = regex.Matches(expression);
-
-            // Get the collections.
-            int count = matchCollection.Count;
-            float[] matches = new float[count];
-
-            // Loop and parse the int values.
-            for (int i = 0; i < count; i++)
-            {
-                matches[i] = float.Parse(matchCollection[i].Value, CultureInfo.InvariantCulture);
-            }
-
-            return matches;
-        }
-    }
-}
diff --git a/src/ImageProcessor/ImageProcessor.csproj b/src/ImageProcessor/ImageProcessor.csproj
index 274b3e76d..0e0d276bb 100644
--- a/src/ImageProcessor/ImageProcessor.csproj
+++ b/src/ImageProcessor/ImageProcessor.csproj
@@ -66,7 +66,6 @@
     <Compile Include="Common\Extensions\DoubleExtensions.cs" />
     <Compile Include="Imaging\Formats\GifInfo.cs" />
     <Compile Include="Common\Extensions\IntegerExtensions.cs" />
-    <Compile Include="Common\Extensions\StringExtensions.cs" />
     <Compile Include="Common\Exceptions\ImageFormatException.cs" />
     <Compile Include="ImageFactory.cs" />
     <Compile Include="Imaging\AnchorPosition.cs" />