diff --git a/Classes/Controller/AbstractController.php b/Classes/Controller/AbstractController.php
index 61d3752a4..96c92629d 100755
--- a/Classes/Controller/AbstractController.php
+++ b/Classes/Controller/AbstractController.php
@@ -173,6 +173,26 @@ protected function loadDocument($requestData)
         }
     }
 
+    /**
+     * Checks if doc is missing or is empty (no pages)
+     *
+     * @return boolean
+     */
+    protected function isDocMissingOrEmpty()
+    {
+        return $this->isDocMissing() || $this->document->getDoc()->numPages < 1;
+    }
+
+    /**
+     * Checks if doc is missing
+     *
+     * @return boolean
+     */
+    protected function isDocMissing()
+    {
+        return $this->document === null || $this->document->getDoc() === null;
+    }
+
     /**
      * Returns the LanguageService
      *
diff --git a/Classes/Controller/AudioPlayerController.php b/Classes/Controller/AudioPlayerController.php
index 42b36e6ed..e05db0ac4 100644
--- a/Classes/Controller/AudioPlayerController.php
+++ b/Classes/Controller/AudioPlayerController.php
@@ -76,11 +76,7 @@ public function mainAction()
     {
         // Load current document.
         $this->loadDocument($this->requestData);
-        if (
-            $this->document === null
-            || $this->document->getDoc() === null
-            || $this->document->getDoc()->numPages < 1
-        ) {
+        if ($this->isDocMissingOrEmpty()) {
             // Quit without doing anything if required variables are not set.
             return '';
         } else {
diff --git a/Classes/Controller/BasketController.php b/Classes/Controller/BasketController.php
index d95b59c05..e7edc19e1 100644
--- a/Classes/Controller/BasketController.php
+++ b/Classes/Controller/BasketController.php
@@ -390,10 +390,7 @@ protected function addToBasket($_piVars, $basket)
             }
             // get document instance to load further information
             $this->loadDocument(['id' => $documentItem['id']]);
-            if (
-                $this->document === null
-                || $this->document->getDoc() === null
-            ) {
+            if ($this->isDocMissing()) {
                 // Quit without doing anything if required variables are not set.
                 return;
             }
diff --git a/Classes/Controller/MetadataController.php b/Classes/Controller/MetadataController.php
index 657ff5c8d..79304c8d0 100644
--- a/Classes/Controller/MetadataController.php
+++ b/Classes/Controller/MetadataController.php
@@ -79,10 +79,7 @@ public function mainAction()
 
         // Load current document.
         $this->loadDocument($this->requestData);
-        if (
-            $this->document === null
-            || $this->document->getDoc() === null
-        ) {
+        if ($this->isDocMissing()) {
             // Quit without doing anything if required variables are not set.
             return '';
         } else {
diff --git a/Classes/Controller/NavigationController.php b/Classes/Controller/NavigationController.php
index 5f488ef5f..0664fe303 100644
--- a/Classes/Controller/NavigationController.php
+++ b/Classes/Controller/NavigationController.php
@@ -57,10 +57,7 @@ public function mainAction()
     {
         // Load current document.
         $this->loadDocument($this->requestData);
-        if (
-            $this->document === null
-            || $this->document->getDoc() === null
-        ) {
+        if ($this->isDocMissing()) {
             // Quit without doing anything if required variables are not set.
             return '';
         } else {
diff --git a/Classes/Controller/PageGridController.php b/Classes/Controller/PageGridController.php
index 9a67c4938..4b58281ad 100644
--- a/Classes/Controller/PageGridController.php
+++ b/Classes/Controller/PageGridController.php
@@ -33,8 +33,7 @@ public function mainAction()
     {
         $this->loadDocument($this->requestData);
         if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->extConf['fileGrpThumbs'])
         ) {
             // Quit without doing anything if required variables are not set.
diff --git a/Classes/Controller/PageViewController.php b/Classes/Controller/PageViewController.php
index cb4ed047c..61a0aabda 100644
--- a/Classes/Controller/PageViewController.php
+++ b/Classes/Controller/PageViewController.php
@@ -69,10 +69,7 @@ public function mainAction()
     {
         // Load current document.
         $this->loadDocument($this->requestData);
-        if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
-        ) {
+        if ($this->isDocMissingOrEmpty()) {
             // Quit without doing anything if required variables are not set.
             return '';
         } else {
diff --git a/Classes/Controller/TableOfContentsController.php b/Classes/Controller/TableOfContentsController.php
index 3bdff2e8c..4f3f371d6 100644
--- a/Classes/Controller/TableOfContentsController.php
+++ b/Classes/Controller/TableOfContentsController.php
@@ -43,10 +43,7 @@ public function mainAction()
     {
         // Load current document.
         $this->loadDocument($this->requestData);
-        if (
-            $this->document === null
-            || $this->document->getDoc() === null
-        ) {
+        if ($this->isDocMissing()) {
             // Quit without doing anything if required variables are not set.
             return;
         } else {
diff --git a/Classes/Controller/ToolboxController.php b/Classes/Controller/ToolboxController.php
index ce19d5d78..2a7f2d826 100644
--- a/Classes/Controller/ToolboxController.php
+++ b/Classes/Controller/ToolboxController.php
@@ -54,10 +54,7 @@ public function mainAction()
      */
     public function annotationtool()
     {
-        if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
-        ) {
+        if ($this->isDocMissingOrEmpty()) {
             // Quit without doing anything if required variables are not set.
             return '';
         } else {
@@ -97,8 +94,7 @@ public function annotationtool()
     public function fulltextdownloadtool()
     {
         if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->extConf['fileGrpFulltext'])
         ) {
             // Quit without doing anything if required variables are not set.
@@ -143,8 +139,7 @@ public function fulltextdownloadtool()
     public function fulltexttool()
     {
         if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->extConf['fileGrpFulltext'])
         ) {
             // Quit without doing anything if required variables are not set.
@@ -189,8 +184,7 @@ public function fulltexttool()
     public function imagedownloadtool()
     {
         if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->settings['fileGrpsImageDownload'])
         ) {
             // Quit without doing anything if required variables are not set.
@@ -281,9 +275,7 @@ public function imagemanipulationtool()
     public function pdfdownloadtool()
     {
         if (
-            $this->document === null
-            || $this->document->getDoc() === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->extConf['fileGrpDownload'])
         ) {
             // Quit without doing anything if required variables are not set.
@@ -396,8 +388,7 @@ protected function getWorkLink()
     public function searchindocumenttool()
     {
         if (
-            $this->document === null
-            || $this->document->getDoc()->numPages < 1
+            $this->isDocMissingOrEmpty()
             || empty($this->extConf['fileGrpFulltext'])
             || empty($this->settings['solrcore'])
         ) {
diff --git a/Classes/Controller/View3DController.php b/Classes/Controller/View3DController.php
index e1e101d4a..fd1a71076 100644
--- a/Classes/Controller/View3DController.php
+++ b/Classes/Controller/View3DController.php
@@ -33,8 +33,7 @@ public function mainAction()
         // Load current document.
         $this->loadDocument($this->requestData);
         if (
-            $this->document === null
-            || $this->document->getDoc() === null
+            $this->isDocMissingOrEmpty()
             || $this->document->getDoc()->metadataArray['LOG_0001']['type'][0] != 'object'
         ) {
             // Quit without doing anything if required variables are not set.