diff --git a/Mk0.Software.ImageSorter/Konverter.cs b/Mk0.Software.ImageSorter/Konverter.cs
index deddca4..c78feb5 100644
--- a/Mk0.Software.ImageSorter/Konverter.cs
+++ b/Mk0.Software.ImageSorter/Konverter.cs
@@ -10,17 +10,28 @@ namespace Mk0.Software.ImageSorter
         private string imagePath;
         public string newFilePath { get; set; }
 
-        public Konverter(string imagePath, bool auto = false, string autoFormat = "")
+        public Konverter(string imagePath, bool auto = false, MagickFormat autoFormat = MagickFormat.Png)
         {
-            InitializeComponent();
             this.imagePath = imagePath;
-            labelBildname.Text = imagePath;
-            comboBoxFormat.SelectedIndex = 0;
+            if (auto)
+            {
+                using (MagickImage image = new MagickImage(imagePath))
+                {
+                    image.Format = autoFormat;
+                    newFilePath = Path.Combine(Path.GetDirectoryName(imagePath), Path.GetFileNameWithoutExtension(imagePath) + "." + autoFormat.ToString().ToLower());
+                    image.Write(newFilePath);
+                }
+            }
+            else
+            {
+                InitializeComponent();
+                labelBildname.Text = imagePath;
+                comboBoxFormat.SelectedIndex = 0;
+            }
         }
 
         private void ButtonKonvert_Click(object sender, EventArgs e)
         {
-            //todo konvertieren
             using (MagickImage image = new MagickImage(imagePath))
             {
                 if (comboBoxFormat.SelectedItem == "PNG")
diff --git a/Mk0.Software.ImageSorter/Main.cs b/Mk0.Software.ImageSorter/Main.cs
index f765e34..902c818 100644
--- a/Mk0.Software.ImageSorter/Main.cs
+++ b/Mk0.Software.ImageSorter/Main.cs
@@ -1292,7 +1292,23 @@ namespace Mk0.Software.ImageSorter
         /// <param name="e"></param>
         private void PictureBox_LoadCompleted(object sender, AsyncCompletedEventArgs e)
         {
-            Zoom();
+            if (e.Error != null && Path.GetExtension(pictureBoxImage.ImageLocation).ToLower() == ".webp")
+            {
+                Konverter k = new Konverter(pictureBoxImage.ImageLocation, true);
+                if (File.Exists(k.newFilePath))
+                {
+                    string del = pictureBoxImage.ImageLocation;
+                    images[imageIndex] = k.newFilePath;
+                    LoadPicture(imageIndex);
+                    FileSystem.DeleteFile(del, UIOption.OnlyErrorDialogs, RecycleOption.SendToRecycleBin, UICancelOption.DoNothing);
+                    Image myImg = CopyImage.GetCopyImage(k.newFilePath);
+                    ShowAutoConvertMessage(myImg, k.newFilePath);
+                }
+            }
+            else
+            {
+                Zoom();
+            }
         }
 
         /// <summary>
@@ -1470,6 +1486,17 @@ namespace Mk0.Software.ImageSorter
             banner.ShowMessages();
         }
 
+        /// <summary>
+        /// Anzeige eines Banners bei automatischem Konvertieren von WEBP-Bildern
+        /// </summary>
+        /// <param name="bild"></param>
+        /// <param name="bildpfad"></param>
+        private void ShowAutoConvertMessage(Image bild, string bildpfad)
+        {
+            banner.Enqueue("Das WEBP-Bild \"" + Path.GetFileName(bildpfad) + "\" wurde", "automatisch konvertiert.", bild, Properties.Resources.converted);
+            banner.ShowMessages();
+        }
+
         /// <summary>
         /// Anzeige eines Banners bei erstelltem Duplikat
         /// </summary>
diff --git a/Mk0.Software.ImageSorter/Mk0.Software.ImageSorter.csproj b/Mk0.Software.ImageSorter/Mk0.Software.ImageSorter.csproj
index 68bf28d..866f0a0 100644
--- a/Mk0.Software.ImageSorter/Mk0.Software.ImageSorter.csproj
+++ b/Mk0.Software.ImageSorter/Mk0.Software.ImageSorter.csproj
@@ -231,6 +231,7 @@
     <None Include="Resources\border-2-topbottom-icon.png" />
     <None Include="Resources\border-2-leftright-icon.png" />
     <None Include="Resources\border-2-all-icon.png" />
+    <None Include="Resources\converted.png" />
     <Content Include="Resources\heic.ico" />
     <None Include="Resources\inpaint-icon.png" />
     <None Include="Resources\inpaint-reloadfile.png" />
diff --git a/Mk0.Software.ImageSorter/Properties/Resources.Designer.cs b/Mk0.Software.ImageSorter/Properties/Resources.Designer.cs
index f2494d9..98684e6 100644
--- a/Mk0.Software.ImageSorter/Properties/Resources.Designer.cs
+++ b/Mk0.Software.ImageSorter/Properties/Resources.Designer.cs
@@ -220,6 +220,16 @@ namespace Mk0.Software.ImageSorter.Properties {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Ressource vom Typ System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap converted {
+            get {
+                object obj = ResourceManager.GetObject("converted", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Ressource vom Typ System.Drawing.Bitmap.
         /// </summary>
diff --git a/Mk0.Software.ImageSorter/Properties/Resources.resx b/Mk0.Software.ImageSorter/Properties/Resources.resx
index b1130b6..f451d90 100644
--- a/Mk0.Software.ImageSorter/Properties/Resources.resx
+++ b/Mk0.Software.ImageSorter/Properties/Resources.resx
@@ -259,4 +259,7 @@
   <data name="inpaint_reloadfile" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\inpaint-reloadfile.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="converted" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\converted.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/Mk0.Software.ImageSorter/Resources/converted.png b/Mk0.Software.ImageSorter/Resources/converted.png
new file mode 100644
index 0000000..cc9b04a
Binary files /dev/null and b/Mk0.Software.ImageSorter/Resources/converted.png differ