Add Pdf.UpdateMetadata

WGneu/App.xaml.cs

@@ -7,9 +7,9 @@ using System.Threading.Tasks;
 using System.Windows;
 
 namespace WGneu {
-    /// <summary>
-    /// Interaction logic for App.xaml
-    /// </summary>
     public partial class App : Application {
+        public App() : base() {
+            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
+        }
     }
 }