Index: Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs
===================================================================
diff -u -rc0a586e98573119668b51c29185aab183b580e40 -rb63fade0e22ce3993cd31e2ced93261ed43e6c42
--- Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs	(.../FontHelper.cs)	(revision c0a586e98573119668b51c29185aab183b580e40)
+++ Core/Common/src/Core.Common.Util/Drawing/FontHelper.cs	(.../FontHelper.cs)	(revision b63fade0e22ce3993cd31e2ced93261ed43e6c42)
@@ -36,8 +36,15 @@
         /// </summary>
         /// <param name="fontData">The data to create the <see cref="Font"/> from.</param>
         /// <returns>The created <see cref="Font"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="fontData"/> is <c>null</c>.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="fontData"/> is not a valid font.</exception>
         public static Font CreateFont(byte[] fontData)
         {
+            if (fontData == null)
+            {
+                throw new ArgumentNullException(nameof(fontData));
+            }
+
             uint dummy = 0;
             var fonts = new PrivateFontCollection();
 
@@ -47,6 +54,11 @@
             AddFontMemResourceEx(fontPtr, (uint) fontData.Length, IntPtr.Zero, ref dummy);
             Marshal.FreeCoTaskMem(fontPtr);
 
+            if (fonts.Families.Length == 0)
+            {
+                throw new ArgumentException("Font data could not be loaded.");
+            }
+
             return new Font(fonts.Families[0], 14.0F);
         }
 
Index: Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs
===================================================================
diff -u
--- Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs	(revision 0)
+++ Core/Common/test/Core.Common.Util.Test/Drawing/FontHelperTest.cs	(revision b63fade0e22ce3993cd31e2ced93261ed43e6c42)
@@ -0,0 +1,72 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Drawing;
+using Core.Common.Util.Drawing;
+using Core.Common.Util.Test.Properties;
+using NUnit.Framework;
+
+namespace Core.Common.Util.Test.Drawing
+{
+    [TestFixture]
+    public class FontHelperTest
+    {
+        [Test]
+        public void CreateFont_ValidFontData_CreatesExpectedFont()
+        {
+            // Call
+            Font font = FontHelper.CreateFont(Resources.ValidFont);
+
+            // Assert
+            Assert.IsNotNull(font);
+            Assert.AreEqual(14, font.Size);
+        }
+
+        [Test]
+        public void CreateFont_FontDataNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => FontHelper.CreateFont(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("fontData", exception.ParamName);
+        }
+
+        [Test]
+        public void CreateFont_InvalidFontData_ThrowsArgumentException()
+        {
+            // Setup
+            var random = new Random();
+            var fontData = new byte[100000];
+
+            random.NextBytes(fontData);
+
+            // Call
+            void Call() => FontHelper.CreateFont(fontData);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentException>(Call);
+            Assert.AreEqual("Font data could not be loaded.", exception.Message);
+        }
+    }
+}
\ No newline at end of file
Index: Core/Common/test/Core.Common.Util.Test/Properties/Resources.Designer.cs
===================================================================
diff -u -r3d088548dfdebfd5c3adbbd67075b42e134f5c03 -rb63fade0e22ce3993cd31e2ced93261ed43e6c42
--- Core/Common/test/Core.Common.Util.Test/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 3d088548dfdebfd5c3adbbd67075b42e134f5c03)
+++ Core/Common/test/Core.Common.Util.Test/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision b63fade0e22ce3993cd31e2ced93261ed43e6c42)
@@ -40,7 +40,7 @@
     // class via a tool like ResGen or Visual Studio.
     // To add or remove a member, edit your .ResX file then rerun ResGen
     // with the /str option, or rebuild your VS project.
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
     internal class Resources {
@@ -213,5 +213,15 @@
                 return ((System.Drawing.Bitmap)(obj));
             }
         }
+        
+        /// <summary>
+        ///   Looks up a localized resource of type System.Byte[].
+        /// </summary>
+        internal static byte[] ValidFont {
+            get {
+                object obj = ResourceManager.GetObject("ValidFont", resourceCulture);
+                return ((byte[])(obj));
+            }
+        }
     }
 }
Index: Core/Common/test/Core.Common.Util.Test/Properties/Resources.resx
===================================================================
diff -u -rac96d7c315129af851634ed5a4a6800b59ede718 -rb63fade0e22ce3993cd31e2ced93261ed43e6c42
--- Core/Common/test/Core.Common.Util.Test/Properties/Resources.resx	(.../Resources.resx)	(revision ac96d7c315129af851634ed5a4a6800b59ede718)
+++ Core/Common/test/Core.Common.Util.Test/Properties/Resources.resx	(.../Resources.resx)	(revision b63fade0e22ce3993cd31e2ced93261ed43e6c42)
@@ -160,4 +160,7 @@
   <data name="acornWithCross" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\acornWithCross.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="ValidFont" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\ValidFont.ttf;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
 </root>
\ No newline at end of file
Index: Core/Common/test/Core.Common.Util.Test/Resources/ValidFont.ttf
===================================================================
diff -u
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