diff --git a/Classes/Service/ConversionService.php b/Classes/Service/ConversionService.php
index 5b4b164..5c2f1c7 100755
--- a/Classes/Service/ConversionService.php
+++ b/Classes/Service/ConversionService.php
@@ -35,6 +35,7 @@
 use TYPO3\CMS\Core\Resource\FileInterface;
 use TYPO3\CMS\Core\Resource\ResourceFactory;
 use TYPO3\CMS\Core\SingletonInterface;
+use TYPO3\CMS\Core\Utility\PathUtility;
 use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 
 /**
@@ -212,10 +213,10 @@ public function convertImageExtensionToRenderMode(string $extension): string
 
     /**
      * @param string|FileInterface|FileReference $src
-     *
+     * @return FileInterface|null return null if the file is not within FAL
      * @throws Exception
      */
-    public function convertFileSrcToFileObject($src): FileInterface
+    public function convertFileSrcToFileObject($src): ?FileInterface
     {
         $file = null;
         $previousException = null;
@@ -226,6 +227,9 @@ public function convertFileSrcToFileObject($src): FileInterface
         } elseif ($src instanceof FileReference) {
             $file = $src->getOriginalResource();
         } else {
+            if (PathUtility::isExtensionPath($src)) {
+                return null;
+            }
             try {
                 $file = $this->resourceFactory->retrieveFileOrFolderObject($src);
             } catch (\Exception $e) {
diff --git a/Classes/ViewHelpers/HtmlViewHelper.php b/Classes/ViewHelpers/HtmlViewHelper.php
index 155f23b..f535fb2 100755
--- a/Classes/ViewHelpers/HtmlViewHelper.php
+++ b/Classes/ViewHelpers/HtmlViewHelper.php
@@ -31,6 +31,8 @@
  * * */
 
 use Bithost\Pdfviewhelpers\Exception\Exception;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use UnexpectedValueException;
 
 /**
  * HtmlViewHelper
@@ -96,8 +98,17 @@ public function render(): void
 
         if (!empty($this->arguments['styleSheet'])) {
             $styleSheetFile = $this->conversionService->convertFileSrcToFileObject($this->arguments['styleSheet']);
-
-            $htmlStyle = '<style>' . $styleSheetFile->getContents() . '</style>';
+            if ($styleSheetFile) {
+                $styleSheetContent = $styleSheetFile->getContents();
+            } else {
+                $styleSheetFileName = GeneralUtility::getFileAbsFileName($this->arguments['styleSheet']);
+                if ($styleSheetFileName) {
+                    $styleSheetContent = file_get_contents($styleSheetFileName);
+                } else {
+                    throw new UnexpectedValueException('Provided CSS file can\'t be loaded: ' . $this->arguments['styleSheet'], 1729853324);
+                }
+            }
+            $htmlStyle = '<style>' . $styleSheetContent . '</style>';
         }
 
         if ($this->arguments['autoHyphenation']) {
diff --git a/Classes/ViewHelpers/ImageViewHelper.php b/Classes/ViewHelpers/ImageViewHelper.php
index d494466..b92410f 100755
--- a/Classes/ViewHelpers/ImageViewHelper.php
+++ b/Classes/ViewHelpers/ImageViewHelper.php
@@ -33,7 +33,9 @@
 use Bithost\Pdfviewhelpers\Exception\Exception;
 use TYPO3\CMS\Core\Imaging\ImageManipulation\CropVariantCollection;
 use TYPO3\CMS\Core\Resource\FileInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Service\ImageService;
+use UnexpectedValueException;
 
 /**
  * ImageViewHelper
@@ -86,10 +88,22 @@ public function render(): void
         $this->initializeMultiColumnSupport();
 
         $imageFile = $this->conversionService->convertFileSrcToFileObject($this->arguments['src']);
-        $processedImage = $this->processImage($imageFile, $this->arguments['processingInstructions']);
+        if ($imageFile) {
+            $processedImage = $this->processImage($imageFile, $this->arguments['processingInstructions']);
 
-        $src = '@' . $processedImage->getContents();
-        $extension = $processedImage->getExtension();
+            $src = $processedImage->getContents();
+            $extension = $processedImage->getExtension();
+        } else {
+            $imageFileName = GeneralUtility::getFileAbsFileName($this->arguments['src']);
+            if ($imageFileName) {
+                $src = file_get_contents($imageFileName);
+                $extension = pathinfo($imageFileName, PATHINFO_EXTENSION);
+            } else {
+                throw new UnexpectedValueException('Provided image source can\'t be loaded: ' . $this->arguments['src'], 1729853325);
+            }
+        }
+        // prepend @ symbol to tell PDF renderer this is inline content
+        $src = '@' . $src;
 
         $multiColumnContext = $this->getCurrentMultiColumnContext();
         $isInAColumn = is_array($multiColumnContext) && ($multiColumnContext['isInAColumn'] ?? false);
diff --git a/Classes/ViewHelpers/ListViewHelper.php b/Classes/ViewHelpers/ListViewHelper.php
index d5ae5f4..c78e11b 100755
--- a/Classes/ViewHelpers/ListViewHelper.php
+++ b/Classes/ViewHelpers/ListViewHelper.php
@@ -32,6 +32,8 @@
 
 use Bithost\Pdfviewhelpers\Exception\Exception;
 use Bithost\Pdfviewhelpers\Exception\ValidationException;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use UnexpectedValueException;
 
 /**
  * ListViewHelper
@@ -66,8 +68,8 @@ public function initialize()
 
         if (!empty($this->arguments['bulletImageSrc'])) {
             $bulletImageFile = $this->conversionService->convertFileSrcToFileObject($this->arguments['bulletImageSrc']);
-
-            if (!($this->conversionService->convertImageExtensionToRenderMode($bulletImageFile->getExtension()) === 'image')) {
+            $fileExtension = $bulletImageFile ? $bulletImageFile->getExtension() : pathinfo($this->arguments['bulletImageSrc'], PATHINFO_EXTENSION);
+            if ($this->conversionService->convertImageExtensionToRenderMode($fileExtension) !== 'image') {
                 throw new ValidationException('Image type not supported for list. ERROR: 1363771014', 1363771014);
             }
         }
@@ -102,14 +104,26 @@ public function render(): void
         //Update y respecting padding
         $this->getPDF()->setY($this->arguments['posY'] + $this->arguments['padding']['top']);
 
+        $bulletImageFileContent = '';
         if (!empty($this->arguments['bulletImageSrc'])) {
             $bulletImageFile = $this->conversionService->convertFileSrcToFileObject($this->arguments['bulletImageSrc']);
-            $bulletImageFileContent = '@' . $bulletImageFile->getContents();
+            if ($bulletImageFile) {
+                $bulletImageFileContent = $bulletImageFile->getContents();
+            } else {
+                $bulletImageFileName = GeneralUtility::getFileAbsFileName($this->arguments['bulletImageSrc']);
+                if ($bulletImageFileName) {
+                    $bulletImageFileContent = file_get_contents($bulletImageFileName);
+                } else {
+                    throw new UnexpectedValueException('Provided bullet image source can\'t be loaded: ' . $this->arguments['bulletImageSrc'], 1729853326);
+                }
+            }
+            // prepend @ symbol to tell PDF renderer this is inline content
+            $bulletImageFileContent = '@' . $bulletImageFileContent;
         }
 
         //The height of a single text line
         $oneLineTextHeight = $this->getPDF()->getStringHeight($textWidth, '.');
-        $elementEndY = $this->getPDF()->getY();
+        $elementEndY = $this->getPDF()->GetY();
         foreach ($this->arguments['listElements'] as $listElement) {
             if ($this->arguments['autoHyphenation']) {
                 $listElement = $this->hyphenationService->hyphenateText(
@@ -119,7 +133,7 @@ public function render(): void
             }
 
             $elementStartPage = $this->getPDF()->getPage();
-            $elementStartY = $this->getPDF()->getY();
+            $elementStartY = $this->getPDF()->GetY();
 
             if ($this->arguments['paragraphLineFeed']) {
                 $listElement .= "\n";
@@ -128,7 +142,7 @@ public function render(): void
             $this->getPDF()->MultiCell($textWidth, $this->arguments['height'], $listElement, 0, $this->conversionService->convertSpeakingAlignmentToTcpdfAlignment($this->arguments['alignment']), false, 1, $textPosX, null, true, 0, false, true, 0, 'T', false);
 
             $elementEndPage = $this->getPDF()->getPage();
-            $elementEndY = $this->getPDF()->getY();
+            $elementEndY = $this->getPDF()->GetY();
 
             $scaledPageHeight = $this->getPDF()->getScaledPageHeight();
             $breakMargin = $this->getPDF()->getBreakMargin($elementStartPage);
@@ -141,7 +155,7 @@ public function render(): void
                 $this->getPDF()->setPage($elementStartPage);
             }
 
-            if (empty($this->arguments['bulletImageSrc'])) {
+            if (!$bulletImageFileContent) {
                 $this->getPDF()->Rect($bulletPosX, $elementStartY + $relativBulletPosY, $this->arguments['bulletSize'], $this->arguments['bulletSize'], 'F', null, [$this->arguments['bulletColor']['R'], $this->arguments['bulletColor']['G'], $this->arguments['bulletColor']['B']]);
             } else {
                 $this->getPDF()->Image($bulletImageFileContent, $bulletPosX, $elementStartY + $relativBulletPosY, $this->arguments['bulletSize'], null, '', '', '', false, 300, '', false, false, 0, false, false, true, false);
diff --git a/composer.json b/composer.json
index dbfc0bf..5c8b5f9 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,7 @@
 		}
 	],
 	"require": {
+		"ext-json": "*",
 		"typo3/cms-core": "^11.5 || ^12.4",
 		"php": ">=7.4.0",
 		"tecnickcom/tcpdf": "^6.2",