diff --git a/doc/01_Doc_Types_and_Available_Processors.md b/doc/01_Doc_Types_and_Available_Processors.md
index ef56bb6..acfcb70 100644
--- a/doc/01_Doc_Types_and_Available_Processors.md
+++ b/doc/01_Doc_Types_and_Available_Processors.md
@@ -16,3 +16,5 @@ This bundle introduces 2 new document types:
 | [PDF Reactor](https://www.pdfreactor.com/) | A REST/SOAP solution, please visit the official website for further information                                                                                          | 
 
  > For details on how to install and configure these processors, please see [Additional Tools Installation](https://pimcore.com/docs/platform/Pimcore/Installation_and_Upgrade/System_Setup_and_Hosting/Additional_Tools_Installation) page in the Core.
+
+You can also add your own Processors as long as they extend the abstract Pimcore\Bundle\WebToPrintBundle\Processor class. Set the full class name in the web2print settings, for example "App\Web2Print\Processor\WkHtmlToPdf".
\ No newline at end of file
diff --git a/public/js/settings.js b/public/js/settings.js
index e735042..1f72883 100644
--- a/public/js/settings.js
+++ b/public/js/settings.js
@@ -328,7 +328,7 @@ pimcore.bundle.web2print.settings = Class.create({
                                 fieldLabel: t("web2print_tool"),
                                 xtype: "combo",
                                 width: 600,
-                                editable: false,
+                                editable: true,
                                 name: "generalTool",
                                 value: this.getValue("generalTool"),
                                 store: [
diff --git a/src/Processor.php b/src/Processor.php
index cf2c5b2..7ac2915 100644
--- a/src/Processor.php
+++ b/src/Processor.php
@@ -40,12 +40,25 @@ public static function getInstance(): PdfReactor|Gotenberg|Chromium|Processor
     {
         $config = Config::getWeb2PrintConfig();
 
-        return match ($config['generalTool']) {
-            'pdfreactor' => new PdfReactor(),
-            'chromium' => new Chromium(),
-            'gotenberg' => new Gotenberg(),
-            default => throw new \Exception('Invalid Configuration - ' . $config['generalTool'])
-        };
+        if($config['generalTool'] == 'pdfreactor'){
+            return new PdfReactor();
+        }
+        elseif($config['generalTool'] == 'chromium'){
+            return new Chromium();
+        }
+        elseif($config['generalTool'] == 'gotenberg'){
+            return new Gotenberg();
+        }
+        else{
+            if(class_exists($config['generalTool'])){
+                $generalToolClass = new $config['generalTool']();
+                if($generalToolClass instanceof Processor){
+                    return $generalToolClass;
+                }
+            }
+        }
+
+        throw new \Exception('Invalid Configuration - ' . $config['generalTool']);
     }
 
     /**