Issue #332

Source/SvgElementStyle.cs

@@ -13,7 +13,7 @@ namespace Svg
     public partial class SvgElement
     {
         private bool _dirty;
-        
+
         /// <summary>
         /// Gets or sets a value indicating whether this element's <see cref="Path"/> is dirty.
         /// </summary>
@@ -339,7 +339,7 @@ namespace Svg
                 this.IsPathDirty = true;
             }
         }
-        
+
         /// <summary>
         /// Get the font information based on data stored with the text object or inherited from the parent.
         /// </summary>
@@ -433,7 +433,7 @@ namespace Svg
             //styles from IE get sent through as lowercase.
             foreach (var f in fontParts)
             {
-                if (doc.FontDefns().TryGetValue(f, out sFaces)) return sFaces;
+                if (doc != null && doc.FontDefns().TryGetValue(f, out sFaces)) return sFaces;
 
                 getFamily = new Func<FontFamily, bool>(ff => string.Equals(ff.Name, f, StringComparison.OrdinalIgnoreCase));
                 family = families.FirstOrDefault(getFamily);