Attach PDF automatically to a purchase order

Hi,

I need some technical information involve in my requirement.

I need to attach a PDF (of PO) file in the PO automatically every time when PO is created or changed.

For this I already did the necesarry config.

1. Created New Output Type ZNEU (Copy of NEU).

2. Transmission Medium 5 (External Mail)

3. Condition Record Created

4. Z-Report is associated with the new Output Type.

Could someone tell me how should I proceed for getting the PO output as PDF and then attaching this PDF file to the PO ?

Request you if you can respond ASAP. Many Thanks in Advance.

Best Regards,

Chirag Shah