diff --git a/src/controllers/document.controller.ts b/src/controllers/document.controller.ts
index e3ecc93..7f8ff24 100644
--- a/src/controllers/document.controller.ts
+++ b/src/controllers/document.controller.ts
@@ -406,9 +406,10 @@ export function sanitizePostgresText(text: string | null | undefined): string {
   return String(text)
     .replace(/\0/g, '')
     .replace(/\\u0000/gi, '')
-    .replace(/[\u0000-\u0008\u000B\u000C\u000E-\u001F]/g, '')
+    .replace(/[\u0000-\u0008\u000B\u000C\u000E-\u001F\u007F-\u009F]/g, '')
     .replace(/[\uD800-\uDFFF]/g, '')
-    .replace(/\uFFFD/g, '');
+    .replace(/\uFFFD/g, '')
+    .replace(/[^\x09\x0A\x0D\x20-\uD7FF\uE000-\uFFFD]/g, '');
 }
 
 // uploadDocument ve uploadTemplate'in (template.controller.ts) ortak kullandığı
diff --git a/src/controllers/template.controller.ts b/src/controllers/template.controller.ts
index bfb06a4..2ecdef4 100644
--- a/src/controllers/template.controller.ts
+++ b/src/controllers/template.controller.ts
@@ -50,7 +50,7 @@ export const uploadTemplate = async (req: AuthenticatedRequest, res: Response) =
     const cleanDescription = description ? sanitizePostgresText(String(description)) : null;
     const cleanText = extractedText ? sanitizePostgresText(extractedText) : null;
 
-    const { data, error } = await supabase
+    let { data, error } = await supabase
       .from('templates')
       .insert([{
         user_id: userId,
@@ -59,12 +59,31 @@ export const uploadTemplate = async (req: AuthenticatedRequest, res: Response) =
         description: cleanDescription,
         storage_path: storagePath,
         file_size: file.size,
-        mime_type: file.mimetype,
+        mime_type: file.mimetype || 'application/octet-stream',
         extracted_text: cleanText,
       }])
       .select()
       .single();
-    if (error) throw error;
+
+    if (error) {
+      console.warn('Template insert initial attempt error, retrying with null text:', error.message);
+      const retry = await supabase
+        .from('templates')
+        .insert([{
+          user_id: userId,
+          category: cleanCategory,
+          name: cleanName,
+          description: cleanDescription,
+          storage_path: storagePath,
+          file_size: file.size,
+          mime_type: file.mimetype || 'application/octet-stream',
+          extracted_text: null,
+        }])
+        .select()
+        .single();
+      if (retry.error) throw retry.error;
+      data = retry.data;
+    }
 
     res.json({ template: data });
   } catch (error: any) {