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printing

README.md

chrome.printing

This sample demonstrates all four methods of the chrome.printing namespace.

Overview

The chrome.printing namespace only works on ChromeOS. The sample demonstrates how to get a list of available printers and display it to a user. A 'Print' button sends a sample PDF to the selected printer and makes a 'Cancel Printing' visible. This button is visible while the print job's status is "PENDING" or "IN_PROGRESS". Note that on some systems, the print job is passed to the printer so quickly that you may never see the 'Cancel Printing' button.

Calling submitJob() triggers a dialog box asking the user to confirm printing. Use the PrintingAPIExtensionsAllowlist policy to bypass confirmation.

If the Roll Printers checkbox is selected, only printers capable of roll printing will appear in the table. In this case, a separate test file is printed and the height of the media can be variable. See Roll printing for more information.

Implementation Notes

Before Chrome 120, submitJob() function throws an error when returning a promise.