You will need access to a printer and scanner, as well as the ability to convert a file to PDF format.
Important: A signed Form 8453 must be attached to an electronically-filed return to be accepted by IRS and considered timely filed. If the return is rejected and the taxpayer changes the return for resubmission, the taxpayer should attach a new 8453 with the resubmission.
The taxpayer is responsible for attaching a properly completed Form 8453 PDF file.