diff --git a/app/Contribution/Documents/BdkjHesse.php b/app/Contribution/Documents/BdkjHesse.php
index f6170678..00f7bef6 100644
--- a/app/Contribution/Documents/BdkjHesse.php
+++ b/app/Contribution/Documents/BdkjHesse.php
@@ -3,15 +3,18 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Illuminate\Support\Str;
 use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
 class BdkjHesse extends ContributionDocument
 {
+
+    use HasPdfBackground;
+
     /**
      * @param Collection<int, Collection<int, MemberData>> $members
      */
@@ -132,11 +135,6 @@ class BdkjHesse extends ContributionDocument
         return $this;
     }
 
-    public function getEngine(): Engine
-    {
-        return Engine::PDFLATEX;
-    }
-
     public static function getName(): string
     {
         return 'BDKJ Hessen';
diff --git a/app/Contribution/Documents/CityFrankfurtMainDocument.php b/app/Contribution/Documents/CityFrankfurtMainDocument.php
index 9d33951a..05c58205 100644
--- a/app/Contribution/Documents/CityFrankfurtMainDocument.php
+++ b/app/Contribution/Documents/CityFrankfurtMainDocument.php
@@ -3,16 +3,17 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
 use App\Invoice\InvoiceSettings;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Illuminate\Support\Str;
-use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
 class CityFrankfurtMainDocument extends ContributionDocument
 {
+    use HasPdfBackground;
+
     public string $fromName;
 
     /**
@@ -120,11 +121,6 @@ class CityFrankfurtMainDocument extends ContributionDocument
         return $this;
     }
 
-    public function getEngine(): Engine
-    {
-        return Engine::PDFLATEX;
-    }
-
     public static function getName(): string
     {
         return 'Frankfurt';
diff --git a/app/Contribution/Documents/CityRemscheidDocument.php b/app/Contribution/Documents/CityRemscheidDocument.php
index 56a37bfc..9a84e4f4 100644
--- a/app/Contribution/Documents/CityRemscheidDocument.php
+++ b/app/Contribution/Documents/CityRemscheidDocument.php
@@ -3,15 +3,17 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
 use App\Member\Member;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
 class CityRemscheidDocument extends ContributionDocument
 {
+    use HasPdfBackground;
+
     /**
      * @param Collection<int, Collection<int, Member>> $leaders
      * @param Collection<int, Collection<int, Member>> $children
@@ -94,11 +96,6 @@ class CityRemscheidDocument extends ContributionDocument
         return $this;
     }
 
-    public function getEngine(): Engine
-    {
-        return Engine::PDFLATEX;
-    }
-
     public static function getName(): string
     {
         return 'Remscheid';
diff --git a/app/Contribution/Documents/CitySolingenDocument.php b/app/Contribution/Documents/CitySolingenDocument.php
index 42864fe9..054adc12 100644
--- a/app/Contribution/Documents/CitySolingenDocument.php
+++ b/app/Contribution/Documents/CitySolingenDocument.php
@@ -6,7 +6,6 @@ use App\Contribution\Data\MemberData;
 use App\Invoice\InvoiceSettings;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Illuminate\Support\Str;
 use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
diff --git a/app/Contribution/Documents/GallierDocument.php b/app/Contribution/Documents/GallierDocument.php
index 3b4333c6..bb4a9377 100644
--- a/app/Contribution/Documents/GallierDocument.php
+++ b/app/Contribution/Documents/GallierDocument.php
@@ -3,14 +3,17 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
 class GallierDocument extends ContributionDocument
 {
+
+    use HasPdfBackground;
+
     /**
      * @param Collection<int, Collection<int, MemberData>> $members
      */
@@ -84,11 +87,6 @@ class GallierDocument extends ContributionDocument
         return $this;
     }
 
-    public function getEngine(): Engine
-    {
-        return Engine::PDFLATEX;
-    }
-
     public static function getName(): string
     {
         return 'Gallier';
diff --git a/app/Contribution/Documents/RdpNrwDocument.php b/app/Contribution/Documents/RdpNrwDocument.php
index 18a7d15e..29a1e972 100644
--- a/app/Contribution/Documents/RdpNrwDocument.php
+++ b/app/Contribution/Documents/RdpNrwDocument.php
@@ -3,14 +3,16 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
 use Carbon\Carbon;
 use Illuminate\Support\Collection;
-use Zoomyboy\Tex\Engine;
 use Zoomyboy\Tex\Template;
 
 class RdpNrwDocument extends ContributionDocument
 {
+    use HasPdfBackground;
+
     /**
      * @param Collection<int, Collection<int, MemberData>> $members
      */
@@ -115,11 +117,6 @@ class RdpNrwDocument extends ContributionDocument
         return $this;
     }
 
-    public function getEngine(): Engine
-    {
-        return Engine::PDFLATEX;
-    }
-
     public static function getName(): string
     {
         return 'RdP NRW';
diff --git a/app/Contribution/Traits/HasPdfBackground.php b/app/Contribution/Traits/HasPdfBackground.php
new file mode 100644
index 00000000..24128d28
--- /dev/null
+++ b/app/Contribution/Traits/HasPdfBackground.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Contribution\Traits;
+
+use Zoomyboy\Tex\Engine;
+
+trait HasPdfBackground
+{
+    public function getEngine(): Engine
+    {
+        return Engine::PDFLATEX;
+    }
+}