NOT a good idea to send it as an "attachment", and besides, much additional coding would be required to facilitate this...
ALSO... if you're sending out a huge batch of e-mails, each one with a big PDF attached, you'll put a big strain on your mail server. It could take a minute or more to send each message. Some email programs may treat it as spam and block the email.
BETTER idea is:
Create your PDF and store it in a dedicated folder on your server.
Create your newsletter and put in a hyperlink to the pdf on your server...
So, if your PDF is in:
Code:
http://www.yourwebsite.com/pdf/sample1.pdf
Then the HTML code in your newsletter will be something like:
Code:
<a href="http://www.yourwebsite.com/pdf/sample1.pdf">See our Information PDF here</a>