I just attach it to an e-mail. You do have to be careful to be sure your mail package properly encodes the PDF and does not send it as though it were a text file -- it is not. Several e-mail packages think a PDF is a text file unless you tell it otherwise and it will be corrupted under such a mail process.
If you are looking for something else, then be more explicit in your question -- how are you trying to do it for instance.
Europe, Middle East and Africa