diff --git a/src/server/controllers/dataSheetController.ts b/src/server/controllers/dataSheetController.ts
index 670abf3..54d9e29 100644
--- a/src/server/controllers/dataSheetController.ts
+++ b/src/server/controllers/dataSheetController.ts
@@ -260,6 +260,8 @@ export const getFile = async (req: Request, res: Response) => {
             if (fileDoc) {
                 res.set('Content-Type', fileDoc.contentType || 'application/pdf');
                 res.set('Content-Disposition', `inline; filename="${fileDoc.filename}"`);
+                res.set('Access-Control-Allow-Origin', '*');
+                res.set('Cache-Control', 'public, max-age=3600');
                 return res.send(fileDoc.data);
             }
         }