How to send a pdf file directly to the printer using JavaScript?

Question

How to send a PDF file directly to the printer using JavaScript?

I found two answers in a forum:

Answer 1

I think this Library of JavaScript might Help you:

It's called Print.js

First Include

It's basic usage is to call printJS() and just pass in a PDF document url: printJS('docs/PrintJS.pdf')

What I did was something like this, this will also show "Loading...." if PDF document is too large.

    Print PDF with Message

However keep in mind that:

Firefox currently doesn't allow printing PDF documents using iframes. There is an open bug in Mozilla's website about this. When using Firefox, Print.js will open the PDF file into a new tab.