diff --git a/src/pdf/pdf.service.ts b/src/pdf/pdf.service.ts
index 6d5e6f6..6042cb5 100644
--- a/src/pdf/pdf.service.ts
+++ b/src/pdf/pdf.service.ts
@@ -131,166 +131,180 @@ export class PdfService {
   private buildHtml(dto: KeyHandoverDto): string {
     return `
       <!doctype html>
-      <html lang="de">
-        <head>
-          <meta charset="UTF-8" />
-          <title>Übergabeprotokoll</title>
-          <style>
-            body {
-              font-family: Arial, Helvetica, sans-serif;
-              font-size: 12px;
-              color: #222;
-              margin: 0;
-              padding: 0;
-            }
+<html lang="de">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Übergabeprotokoll</title>
+    <style>
+      body {
+        font-family: Arial, Helvetica, sans-serif;
+        font-size: 12px;
+        color: #222;
+        margin: 0;
+        padding: 0;
+      }
 
-            h1 {
-              text-align: center;
-              margin: 0 0 24px 0;
-              font-size: 22px;
-            }
+      h1 {
+        text-align: center;
+        margin: 0 0 24px 0;
+        font-size: 22px;
+      }
 
-            .section {
-              margin-bottom: 18px;
-            }
+      .section {
+        margin-bottom: 18px;
+      }
 
-            .section-title {
-              font-weight: bold;
-              font-size: 14px;
-              margin-bottom: 8px;
-              border-bottom: 1px solid #ccc;
-              padding-bottom: 4px;
-            }
+      .section-title {
+        font-weight: bold;
+        font-size: 14px;
+        margin-bottom: 8px;
+        border-bottom: 1px solid #ccc;
+        padding-bottom: 4px;
+      }
 
-            .row {
-              margin-bottom: 6px;
-            }
+      .row {
+        margin-bottom: 6px;
+      }
 
-            .label {
-              display: inline-block;
-              width: 170px;
-              font-weight: bold;
-              vertical-align: top;
-            }
+      .label {
+        display: inline-block;
+        width: 170px;
+        font-weight: bold;
+        vertical-align: top;
+      }
 
-            .value {
-              display: inline-block;
-              max-width: 360px;
-              word-break: break-word;
-            }
+      .value {
+        display: inline-block;
+        max-width: 360px;
+        word-break: break-word;
+      }
 
-            .note-box {
-              min-height: 60px;
-              border: 1px solid #ccc;
-              padding: 8px;
-              margin-top: 6px;
-              white-space: pre-wrap;
-            }
+      .note-box {
+        min-height: 60px;
+        border: 1px solid #ccc;
+        padding: 8px;
+        margin-top: 6px;
+        white-space: pre-wrap;
+      }
 
-            .declaration {
-              margin-top: 24px;
-              line-height: 1.5;
-            }
+      .declaration {
+        margin-top: 24px;
+        line-height: 1.5;
+      }
 
-            .signature-wrapper {
-              margin-top: 60px;
-              display: flex;
-              justify-content: space-between;
-              gap: 40px;
-            }
+      .signature-wrapper {
+        margin-top: 40px;
+        display: flex;
+        justify-content: center;
+      }
 
-            .signature-block {
-              width: 45%;
-            }
+      .signature-block {
+        width: 45%;
+      }
 
-            .signature-line {
-              border-top: 1px solid #000;
-              margin-top: 50px;
-              padding-top: 6px;
-              text-align: center;
-            }
-          </style>
-        </head>
-        <body>
-          <h1>Übergabeprotokoll</h1>
+      .signature-line {
+        border-top: 1px solid #000;
+        margin-top: 50px;
+        padding-top: 6px;
+        text-align: center;
+      }
 
-          <div class="section">
-            <div class="section-title">Übergabedaten</div>
-            <div class="row">
-              <span class="label">Datum der Übergabe:</span>
-              <span class="value">${this.escapeHtml(new Date(dto.handoverDate).toLocaleDateString("de-DE"))}</span>
-            </div>
-            <div class="row" style="display: none">
-              <span class="label">Ort:</span>
-              <span class="value">${this.escapeHtml(dto.place)}</span>
-            </div>
-          </div>
+      .return-section {
+        margin-top: 50px;
+        padding-top: 20px;
+        border-top: 1px dashed #999;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Übergabeprotokoll</h1>
 
-          <div class="section">
-            <div class="section-title">Übergeber</div>
-            <div class="row">
-              <span class="label">Name:</span>
-              <span class="value">${this.escapeHtml(dto.giverName)}</span>
-            </div>
-            <div class="row">
-              <span class="label">Adresse:</span>
-              <span class="value">${this.escapeHtml(dto.giverAddress ?? '-')}</span>
-            </div>
-          </div>
+    <div class="section">
+      <div class="section-title">Übergabedaten</div>
+      <div class="row">
+        <span class="label">Datum der Übergabe:</span>
+        <span class="value">${this.escapeHtml(new Date(dto.handoverDate).toLocaleDateString("de-DE"))}</span>
+      </div>
+      <div class="row" style="display: none">
+        <span class="label">Ort:</span>
+        <span class="value">${this.escapeHtml(dto.place)}</span>
+      </div>
+    </div>
 
-          <div class="section">
-            <div class="section-title">Empfänger</div>
-            <div class="row">
-              <span class="label">Name:</span>
-              <span class="value">${this.escapeHtml(dto.receiverName)}</span>
-            </div>
-            <div class="row">
-              <span class="label">Adresse:</span>
-              <span class="value">${this.escapeHtml(dto.receiverAddress ?? '-')}</span>
-            </div>
-          </div>
+    <div class="section">
+      <div class="section-title">Übergeber</div>
+      <div class="row">
+        <span class="label">Name:</span>
+        <span class="value">${this.escapeHtml(dto.giverName)}</span>
+      </div>
+      <div class="row">
+        <span class="label">Adresse:</span>
+        <span class="value">${this.escapeHtml(dto.giverAddress ?? "-")}</span>
+      </div>
+    </div>
 
-          <div class="section">
-            <div class="section-title">Schlüsselangaben</div>
-            <div class="row" style="display: none;">
-              <span class="label">Schlüsselart:</span>
-              <span class="value">${this.escapeHtml(dto.keyType)}</span>
-            </div>
-            <div class="row">
-              <span class="label">Schlüsselnummer:</span>
-              <span class="value">${this.escapeHtml(dto.keyNumber ?? '-')}</span>
-            </div>
-            <div class="row" style="display: none;">
-              <span class="label">Anzahl:</span>
-              <span class="value">${dto.quantity}</span>
-            </div>
-            <div class="row">
-              <span class="label">Objekt / Raum:</span>
-              <span class="value">${this.escapeHtml(dto.objectDescription ?? '-')}</span>
-            </div>
-            <div class="row">
-              <span class="label">Bemerkungen:</span>
-            </div>
-            <div class="note-box">${this.escapeHtml(dto.notes ?? '-')}</div>
-            
-          </div>
+    <div class="section">
+      <div class="section-title">Empfänger</div>
+      <div class="row">
+        <span class="label">Name:</span>
+        <span class="value">${this.escapeHtml(dto.receiverName)}</span>
+      </div>
+      <div class="row">
+        <span class="label">Adresse:</span>
+        <span class="value">${this.escapeHtml(dto.receiverAddress ?? "-")}</span>
+      </div>
+    </div>
 
-          <div class="declaration">
-            Hiermit bestätigt der Empfänger den Erhalt der oben aufgeführten Schlüssel.
-            <br />
-            Mit ihrer Unterschrift bestätigen beide Parteien die ordnungsgemäße Übergabe.
-          </div>
+    <div class="section">
+      <div class="section-title">Schlüsselangaben</div>
+      <div class="row" style="display: none;">
+        <span class="label">Schlüsselart:</span>
+        <span class="value">${this.escapeHtml(dto.keyType)}</span>
+      </div>
+      <div class="row">
+        <span class="label">Schlüsselnummer:</span>
+        <span class="value">${this.escapeHtml(dto.keyNumber ?? "-")}</span>
+      </div>
+      <div class="row" style="display: none;">
+        <span class="label">Anzahl:</span>
+        <span class="value">${dto.quantity}</span>
+      </div>
+      <div class="row">
+        <span class="label">Objekt / Raum:</span>
+        <span class="value">${this.escapeHtml(dto.objectDescription ?? "-")}</span>
+      </div>
+      <div class="row">
+        <span class="label">Bemerkungen:</span>
+      </div>
+      <div class="note-box">${this.escapeHtml(dto.notes ?? "-")}</div>
+    </div>
+
+    <div class="declaration">
+      Hiermit bestätigt der Empfänger den Erhalt der oben aufgeführten Schlüssel.
+    </div>
+
+    <div class="signature-wrapper">
+      <div class="signature-block">
+        <div class="signature-line">Unterschrift Empfänger</div>
+      </div>
+    </div>
+
+    <div class="return-section">
+      <div class="section-title">Rückgabe des Schlüssels</div>
+
+      <div class="declaration">
+        Hiermit wird bestätigt, dass der oben aufgeführte Schlüssel zurückgegeben wurde.
+      </div>
+
+      <div class="signature-wrapper">
+        <div class="signature-block">
+          <div class="signature-line">Unterschrift Rücknahme</div>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>
 
-          <div class="signature-wrapper">
-            <div class="signature-block">
-              <div class="signature-line">Unterschrift Übergeber</div>
-            </div>
-            <div class="signature-block">
-              <div class="signature-line">Unterschrift Empfänger</div>
-            </div>
-          </div>
-        </body>
-      </html>
     `;
   }
 
