Mass PDF Printing in Web Application

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Im making a PDF printing application using PHP and JS. I want to make is to print mass PDF in one time instead of user printing it one at a time.

At every row there is a number input for user to type in the amount that they wish to print, at the top there will be a print button to print out the document. If possible it will just print directly without showing the print option in browser.

How to make it print directly without the print option windows and to print in mass?