Why can't we simply start with a filename which defaults to the invoice number, but which can be edited? QBO generates PDFs and generates a name for the PDFs - why is it a problem to have an option that it looks for clues as to what the filename ought to be? If it's a quote, an invoice, a PO, obviously for filing purposes it makes great sense for those to receive as the filename "name of document".pdf

Guaranteeed the only reason for having a PDF is to send it to someone or store it elsewhere. That means a randomly-generated filename is absolutely useless and must be changed manually, every time. I'm really confused as to why the support team doesn't natively understand this mindset and why the question was treated as it was - very strange indeed, if you ask me.