is it possible send a quote pdf automatically?

is it possible send a quote pdf automatically?

Hi:

I know I can send an email (email template) automatically if I set the Workflow Rules correctly.

My question is: if a new quote(or invoice) is created (or modified), is it possible send the .pdf file automatically by using workflow rules?  (I am having a webpage, that can send the data to crm and create a quote, but I want this new quote send back to the webpage user immediately, not wait till the crm owner login the crm account to send).

thanks a lot.