fix: removing encode utf8 in get_pdf_base64

Author: LucasAlvws

pydoll/browser/page.py

@@ -174,7 +174,7 @@ async def get_pdf_base64(self):
             str: The PDF data of the page.
         """
         response = await self._execute_command(PageCommands.print_to_pdf())
-        return response['result']['data'].encode('utf-8')
+        return response['result']['data']
 
     async def print_to_pdf(self, path: str):
         """