I need to use outlook to send the same pdf file as an attachment to any one who requests it. All I want to do is this. After the new mail form is launched (by clicking on the recipient's email address) I want a button, or something, that will automatically insert the subject and body text (which will always be the same for every mail) attach the pdf (which will always have the same filename and be stored in the same location), and send the mail.

I'm sure this is very easy and that I'm missing something obvious but I've searched for hours and can't find what I need. Any help would be very much appreciated.