Hi there.  I have been working with the VisualForce "renderAs="pdf"" with my page.  The client has some requirements I need to meet.  I need to add the pdf to the Opportunity record in the notes and attachments related list.

I have found the following code:

Apexpages.currentPage().getHeaders().put('content-disposition', 'attachment; filename='+pdfName);

 This code is great because as soon as the user clicks on the link to my pdf rendered page it just opens the save dialog.  However, in addition to this I would like to insert the pdf as an attachment to the record it is related to. 

I found some code and got some help from the forum already about inserting the page as a new attachment but when the file attaches to the record I get an error from Adobe reader when I try to open it: 

ERROR: Adobe Reader could not open 'FILENAME.pdf' because it is either not a supported file type or because the file has been damaged (for, example, it was sent as an email attachment and wasn't correctly decoded).

My question is this: does the line of code above create an attachment, and if so, can't I just insert that into my related record instead of making a new attachment and using getContent() etc.?

Thanks!