Unable to Open PDF file, got through mail.

Dear All,

when taking the PDF file into Mail, I am able to get the Mail but unable to open the PDF file getting the error below.

Adobe Reader could not open

'TEST_20070912114238.411_x.pdf' because it is either not a

supported file type or because the file has been damaged (for example, it was

sent as an email attachment and wasn't correctly decoded).

Can anyone please suggest me, how to proceed.

Thanks in Advance,

Regards,

Satya.