onbeforeprint Event

Call a function when a page is about to be printed:

Description

The onbeforeprint event occurs when a page is about to be printed.

The onbeforeprint event occurs before the print dialogue box opens.

The browser fires onafterprint and onbeforeprint so that notes, explanations and comments can be added to the printing process.

In HTML:

<element onbeforeprint="myScript">

In JavaScript:

object.onbeforeprint = function(){myScript};

In JavaScript, using the addEventListener() method:

object.addEventListener("beforeprint", myScript);

onbeforeprint is a DOM Level 3 (2004) feature.

It is fully supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	11