diff --git a/app/router.php b/app/router.php
index 028f1da..f1ae42d 100644
--- a/app/router.php
+++ b/app/router.php
@@ -200,6 +200,17 @@ function findCoverImage(string $dirPath): ?string {
     return null;
 }
 
+
+function findPdfFile(string $dirPath): ?string {
+    $files = scandir($dirPath) ?: [];
+    foreach ($files as $file) {
+        if (pathinfo($file, PATHINFO_EXTENSION) === 'pdf') {
+            return $file;
+        }
+    }
+    return null;
+}
+
 function loadTranslations(string $lang): array {
     $translationFile = dirname(__DIR__) . "/custom/languages/$lang.ini";
     if (file_exists($translationFile)) {
@@ -440,6 +451,7 @@ switch ($parsedPath['type']) {
 
             $metadata = loadMetadata($itemPath, $currentLang, $defaultLang);
             $coverImage = findCoverImage($itemPath);
+            $pdfFile = findPdfFile($itemPath);
 
             $title = $metadata['title'] ?? extractTitle($itemPath, $patterns) ?? $item;
             $date = null;
@@ -461,7 +473,8 @@ switch ($parsedPath['type']) {
                 'date' => $date,
                 'url' => $langPrefix . '/' . trim($requestPath, '/') . '/' . urlencode($urlSlug),
                 'cover' => $coverImage ? $langPrefix . '/' . trim($requestPath, '/') . '/' . urlencode($urlSlug) . '/' . $coverImage : null,
-                'summary' => $metadata['summary'] ?? null
+                'summary' => $metadata['summary'] ?? null,
+                'pdf' => $pdfFile ? $langPrefix . '/' . trim($requestPath, '/') . '/' . urlencode($urlSlug) . '/' . $pdfFile : null
             ];
         }, $subdirs));