Not able to attach PDF from sp01 as attachment in SBWP

Hi all,

We are on ECC 6.0 , we are working on a workflow scenario where the sp01 pdf files need to tbe attached to SBWP as attachment .

I am able to attach the non-pdf files as attachment with the option export from spool but the pdf i am not able to attach .

I am able to open the PDF file in sp01 successfully.

Please suggest is this releated any config stuff or any frontend patch issue.. or anything else..

thanks,

Subhash.G