Serve all PDF Files on S3 with Nginx and Proxy Reverse(remember give public access on files en S3)

aws.conf

location ~ \.pdf {
  try_files $uri $uri/ @aws;
}

location @aws {
  proxy_pass https://<bucket_name>.s3.amazonaws.com;
  proxy_set_header Host "<bucket_name>.s3.amazonaws.com";
  proxy_set_header Authorization '';
  proxy_hide_header x-amz-id-2;
  proxy_hide_header x-amz-storage-class;
  proxy_hide_header x-amz-request-id;
  proxy_hide_header Set-Cookie;
  proxy_ignore_headers "Set-Cookie";
}