diff --git a/custom/Espo/Custom/Hooks/CDokumente/CDokumente.php b/custom/Espo/Custom/Hooks/CDokumente/CDokumente.php
new file mode 100644
index 00000000..2c4da7c8
--- /dev/null
+++ b/custom/Espo/Custom/Hooks/CDokumente/CDokumente.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Espo\Custom\Hooks\CDokumente;
+
+use Espo\ORM\Entity;
+use Espo\Core\Utils\Util;
+
+class CDokumente extends \Espo\Core\Hooks\Base
+{
+    public function beforeSave(Entity $entity, array $options = [])
+    {
+        // Nur berechnen, wenn die Datei geändert wurde oder neu
+        if (!$entity->isNew() && !$entity->isAttributeChanged('dokument')) {
+            return;
+        }
+
+        $dokument = $entity->get('dokument');
+
+        if (!$dokument) {
+            return;
+        }
+
+        if (is_object($dokument)) {
+            $attachment = $dokument;
+        } else {
+            $attachment = $this->getEntityManager()->getEntity('Attachment', $dokument);
+        }
+
+        if (!$attachment) {
+            return;
+        }
+
+        $filePath = 'data/upload/' . $attachment->get('id');
+        if (!file_exists($filePath)) {
+            return;
+        }
+
+        // Berechne neue Hashes
+        $newMd5 = hash_file('md5', $filePath);
+        $newSha256 = hash_file('sha256', $filePath);
+
+        // Setze Hashes
+        $entity->set('md5sum', $newMd5);
+        $entity->set('sha256', $newSha256);
+
+        // Bestimme Status
+        if ($entity->isNew()) {
+            $entity->set('fileStatus', 'new');
+        } else {
+            $oldMd5 = $entity->getFetched('md5sum');
+            $oldSha256 = $entity->getFetched('sha256');
+
+            if ($oldMd5 !== $newMd5 || $oldSha256 !== $newSha256) {
+                $entity->set('fileStatus', 'changed');
+            } else {
+                $entity->set('fileStatus', 'unchanged');
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/custom/Espo/Custom/Resources/i18n/de_DE/CDokumente.json b/custom/Espo/Custom/Resources/i18n/de_DE/CDokumente.json
index a77162a7..59a050c4 100644
--- a/custom/Espo/Custom/Resources/i18n/de_DE/CDokumente.json
+++ b/custom/Espo/Custom/Resources/i18n/de_DE/CDokumente.json
@@ -11,6 +11,7 @@
     "xaiId": "x.AI ID",
     "xaiCollections": "x.AI Collections",
     "xaiSyncStatus": "Sync-Status",
+    "fileStatus": "Datei-Status",
     "contactsvmhdokumente": "Freigegebene Nutzer",
     "vmhMietverhltnisesDokumente": "Mietverhältnisse",
     "vmhErstgespraechsdokumente": "Erstgespräche",
@@ -41,7 +42,8 @@
     "syncStatus": "Status der Synchronisation: pending_sync = Warte auf Sync, clean = erfolgreich, unclean = Abweichungen, failed = Fehler",
     "xaiId": "Eindeutige ID für x.AI Synchronisation",
     "xaiCollections": "Liste der x.AI Collections für dieses Dokument",
-    "xaiSyncStatus": "Status der x.AI Synchronisation: pending_sync = Warte auf Sync, clean = erfolgreich, unclean = Abweichungen, failed = Fehler"
+    "xaiSyncStatus": "Status der x.AI Synchronisation: pending_sync = Warte auf Sync, clean = erfolgreich, unclean = Abweichungen, failed = Fehler",
+    "fileStatus": "Status der Datei: new = neu hochgeladen, changed = geändert, unchanged = unverändert"
   },
   "options": {
     "syncStatus": {
@@ -55,6 +57,11 @@
       "clean": "Synchronisiert",
       "unclean": "Abweichungen",
       "failed": "Fehlgeschlagen"
+    },
+    "fileStatus": {
+      "new": "Neu",
+      "changed": "Geändert",
+      "unchanged": "Unverändert"
     }
   }
 }
\ No newline at end of file
diff --git a/custom/Espo/Custom/Resources/i18n/en_US/CDokumente.json b/custom/Espo/Custom/Resources/i18n/en_US/CDokumente.json
index 14869dbd..f978351f 100644
--- a/custom/Espo/Custom/Resources/i18n/en_US/CDokumente.json
+++ b/custom/Espo/Custom/Resources/i18n/en_US/CDokumente.json
@@ -19,7 +19,8 @@
         "syncStatus": "Sync Status",
         "xaiId": "x.AI ID",
         "xaiCollections": "x.AI Collections",
-        "xaiSyncStatus": "Sync Status"
+        "xaiSyncStatus": "Sync Status",
+        "fileStatus": "File Status"
     },
     "links": {
         "contactsvmhdokumente": "Portal Users",
@@ -44,7 +45,8 @@
         "syncStatus": "Synchronization status: pending_sync = Waiting for sync, clean = successful, unclean = discrepancies, failed = error",
         "xaiId": "Unique ID for x.AI synchronization",
         "xaiCollections": "List of x.AI collections for this document",
-        "xaiSyncStatus": "x.AI synchronization status: pending_sync = Waiting for sync, clean = successful, unclean = discrepancies, failed = error"
+        "xaiSyncStatus": "x.AI synchronization status: pending_sync = Waiting for sync, clean = successful, unclean = discrepancies, failed = error",
+        "fileStatus": "File status: new = newly uploaded, changed = modified, unchanged = unchanged"
     },
     "options": {
         "syncStatus": {
@@ -58,6 +60,11 @@
             "clean": "Synchronized",
             "unclean": "Discrepancies",
             "failed": "Failed"
+        },
+        "fileStatus": {
+            "new": "New",
+            "changed": "Changed",
+            "unchanged": "Unchanged"
         }
     }
 }
\ No newline at end of file
diff --git a/custom/Espo/Custom/Resources/layouts/CDokumente/detail.json b/custom/Espo/Custom/Resources/layouts/CDokumente/detail.json
index 5da41172..21f01b04 100644
--- a/custom/Espo/Custom/Resources/layouts/CDokumente/detail.json
+++ b/custom/Espo/Custom/Resources/layouts/CDokumente/detail.json
@@ -63,6 +63,11 @@
                 {
                     "name": "sha256"
                 }
+            ],
+            [
+                {
+                    "name": "fileStatus"
+                }
             ]
         ],
         "dynamicLogicVisible": null,
diff --git a/custom/Espo/Custom/Resources/metadata/entityDefs/CDokumente.json b/custom/Espo/Custom/Resources/metadata/entityDefs/CDokumente.json
index 11d77c76..63f483ed 100644
--- a/custom/Espo/Custom/Resources/metadata/entityDefs/CDokumente.json
+++ b/custom/Espo/Custom/Resources/metadata/entityDefs/CDokumente.json
@@ -138,6 +138,24 @@
             "default": "pending_sync",
             "tooltip": true,
             "isCustom": true
+        },
+        "fileStatus": {
+            "type": "enum",
+            "required": false,
+            "options": [
+                "new",
+                "changed",
+                "unchanged"
+            ],
+            "style": {
+                "new": "info",
+                "changed": "warning",
+                "unchanged": "success"
+            },
+            "default": "new",
+            "readOnly": true,
+            "tooltip": true,
+            "isCustom": true
         }
     },
     "links": {
diff --git a/data/config.php b/data/config.php
index b2e128c3..e0844506 100644
--- a/data/config.php
+++ b/data/config.php
@@ -358,7 +358,7 @@ return [
     0 => 'youtube.com',
     1 => 'google.com'
   ],
-  'microtime' => 1772471137.489776,
+  'microtime' => 1772522154.570041,
   'siteUrl' => 'https://crm.bitbylaw.com',
   'fullTextSearchMinLength' => 4,
   'webSocketUrl' => 'ws://api.bitbylaw.com:5000/espocrm/ws',
diff --git a/data/state.php b/data/state.php
index 044be63d..e9e5750e 100644
--- a/data/state.php
+++ b/data/state.php
@@ -1,7 +1,7 @@
 <?php
 return [
-  'cacheTimestamp' => 1772471137,
-  'microtimeState' => 1772471137.62098,
+  'cacheTimestamp' => 1772522193,
+  'microtimeState' => 1772522193.960869,
   'currencyRates' => [
     'EUR' => 1.0
   ],