Forum OpenACS Q&A: Response to server side document to .pdf conversion

Posted by John Sequeira on
Doc2Pdf looks pretty close to what you want.

Doc2pdf is an email robot that converts Microsoft Office attachments (.doc, .ppt and .xls) to PDF files. All you need do is carbon-copy (CC) doc2pdf when you email a Microsoft Office document. Doc2pdf converts the attachment to a PDF file and sends the PDF file, as an attachment, in a reply to all recipients.

It's an email robot, but you could probably hack it to work serverside.