diff --git a/WGneu/Documents/Document.cshtml.cs b/WGneu/Documents/Document.cshtml.cs
index d31e3b8..efb9f3f 100644
--- a/WGneu/Documents/Document.cshtml.cs
+++ b/WGneu/Documents/Document.cshtml.cs
@@ -10,7 +10,7 @@ using WGneu.Helpers;
 namespace WGneu.Documents {
     public abstract class Document : IDisposable {
 
-        private Utils.TemporaryFile? PdfFile = null;
+        private TempFile? PdfFile = null;
 
         public Document(string title) {
             Title = title;
@@ -51,8 +51,8 @@ namespace WGneu.Documents {
         }
 
         public async Task Generate() {
-            var pdf = new Utils.TemporaryFile("pdf");
-            using (var tmpHtml = new Utils.TemporaryFile("html")) {
+            var pdf = new TempFile("pdf");
+            using (var tmpHtml = new TempFile("html")) {
                 await File.WriteAllTextAsync(tmpHtml.FilePath, await Render());
                 await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath);
             }
diff --git a/WGneu/Documents/Pdf.cs b/WGneu/Documents/Pdf.cs
index 1c2b404..ffbb64f 100644
--- a/WGneu/Documents/Pdf.cs
+++ b/WGneu/Documents/Pdf.cs
@@ -66,7 +66,7 @@ namespace WGneu.Documents {
             doc.Save(path);
         }
 
-        public static void Show(Utils.TemporaryFile file, string title) {
+        public static void Show(TempFile file, string title) {
             App.MainDispatcher.BeginInvoke(() => {
                 var w = new DocumentViewerWindow(title, file);
                 w.Show();
diff --git a/WGneu/Helpers/TempFile.cs b/WGneu/Helpers/TempFile.cs
new file mode 100644
index 0000000..e2f614b
--- /dev/null
+++ b/WGneu/Helpers/TempFile.cs
@@ -0,0 +1,45 @@
+using System;
+using System.IO;
+
+namespace WGneu.Helpers {
+    public sealed class TempFile : IDisposable {
+        private int Usages = 0;
+        public string FilePath { get; private set; }
+
+        public TempFile() : this(null) { }
+
+        public TempFile(string? ext) : this(Path.Combine(Path.GetTempPath(), "Elwig"), ext) { }
+
+        public TempFile(string dir, string? ext) {
+            FilePath = Path.Combine(dir, Path.GetRandomFileName().Replace(".", "") + (ext != null ? $".{ext}" : ""));
+            Usages++;
+            Create();
+        }
+
+        ~TempFile() {
+            Delete();
+        }
+
+        public void Dispose() {
+            if (--Usages == 0) {
+                Delete();
+                GC.SuppressFinalize(this);
+            }
+        }
+
+        public TempFile NewReference() {
+            Usages++;
+            return this;
+        }
+
+        private void Create() {
+            using (File.Create(FilePath)) { };
+        }
+
+        private void Delete() {
+            if (FilePath == null) return;
+            File.Delete(FilePath);
+            FilePath = null;
+        }
+    }
+}
diff --git a/WGneu/Helpers/Utils.cs b/WGneu/Helpers/Utils.cs
index f080449..f27a78f 100644
--- a/WGneu/Helpers/Utils.cs
+++ b/WGneu/Helpers/Utils.cs
@@ -1,12 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Media;
 using System.Windows;
 using System.Windows.Controls;
-using System.IO;
 using System.Diagnostics;
 
 namespace WGneu.Helpers {
@@ -63,46 +61,5 @@ namespace WGneu.Helpers {
                 UseShellExecute = true,
             });
         }
-
-        public sealed class TemporaryFile : IDisposable {
-            private int Usages = 0;
-            public string FilePath { get; private set; }
-
-            public TemporaryFile() : this(null) { }
-
-            public TemporaryFile(string? ext) : this(Path.Combine(Path.GetTempPath(), "Kelwin"), ext) { }
-
-            public TemporaryFile(string dir, string? ext) {
-                FilePath = Path.Combine(dir, Path.GetRandomFileName().Replace(".", "") + (ext != null ? $".{ext}" : ""));
-                Usages++;
-                Create();
-            }
-
-            ~TemporaryFile() {
-                Delete();
-            }
-
-            public void Dispose() {
-                if (--Usages == 0) {
-                    Delete();
-                    GC.SuppressFinalize(this);
-                }
-            }
-
-            public TemporaryFile NewReference() {
-                Usages++;
-                return this;
-            }
-
-            private void Create() {
-                using (File.Create(FilePath)) { };
-            }
-
-            private void Delete() {
-                if (FilePath == null) return;
-                File.Delete(FilePath);
-                FilePath = null;
-            }
-        }
     }
 }
diff --git a/WGneu/Helpers/Validator.cs b/WGneu/Helpers/Validator.cs
index cc9e615..315faa3 100644
--- a/WGneu/Helpers/Validator.cs
+++ b/WGneu/Helpers/Validator.cs
@@ -1,9 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.Drawing;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows.Controls;
 
 namespace WGneu.Helpers {
diff --git a/WGneu/Helpers/WgContext.cs b/WGneu/Helpers/WgContext.cs
index 73af0ed..9373050 100644
--- a/WGneu/Helpers/WgContext.cs
+++ b/WGneu/Helpers/WgContext.cs
@@ -1,9 +1,4 @@
 using Microsoft.EntityFrameworkCore;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using WGneu.Models;
 
 namespace WGneu.Helpers {
diff --git a/WGneu/Windows/DocumentViewerWindow.xaml.cs b/WGneu/Windows/DocumentViewerWindow.xaml.cs
index 5376eff..13d3ae4 100644
--- a/WGneu/Windows/DocumentViewerWindow.xaml.cs
+++ b/WGneu/Windows/DocumentViewerWindow.xaml.cs
@@ -16,7 +16,7 @@ using WGneu.Helpers;
 namespace WGneu.Windows {
     public partial class DocumentViewerWindow : Window {
 
-        private Utils.TemporaryFile? PdfFile = null;
+        private TempFile? PdfFile = null;
 
         public DocumentViewerWindow(string title, string path) {
             InitializeComponent();
@@ -24,7 +24,7 @@ namespace WGneu.Windows {
             WebView.Source = new($"file://{path}#view=FitH");
         }
 
-        public DocumentViewerWindow(string title, Utils.TemporaryFile file) : this(title, file.FilePath) {
+        public DocumentViewerWindow(string title, TempFile file) : this(title, file.FilePath) {
             PdfFile = file;
         }