[Zope] Answer to pdfs from buffer

[Jason.Jones@awl.com]

I figured out the answer to my own question:

It seems I was soing things correctly, but needed a restart of the server to get it working, plus the addition of 
the content-length header, for instance if my buffer or string is val, then 

RESPONSE.set('Content-length',str(len(val)))

does the trick and my pdf returns fine.

Thanks,

jason