Hitting print in the browser or calling Window.print() if you want to force the dialog. If you serve a PDF you still need to hit print or use dialog to save, y

Hitting print in the browser or calling Window.print() if you want to force the dialog. If you serve a PDF you still need to hit print or use dialog to save, you can use a headless browser server side to serve that if needed. I do think browser could use better print API's but you not getting around that with server side PDF's unless the server direct prints to on site printers or something.