Magento Community Edition, 1.9.x
Print Invoices

You can print an invoice for a single order, or for multiple invoices as a batch, or group. However, before an invoice can be printed, the invoice must first be generated for the order.

To view or print the PDF, you must have a PDF reader. You can download Adobe Reader at no charge.

To print invoices:

1. On the Admin menu, select Sales > Invoices.
2. In the Invoices list, select the checkbox of each invoice that you want to print.
3. Set the Actions control to “Print Invoices.”

Print Invoices
4. Click the Submit button to generate the PDF and display the document in a new window.
5. After the file has been downloaded and saved to your computer, you can open and print the document with Adobe Reader.