Unable to download. The electronic invoice issued by Pupu Supermarket cannot be downloaded, because the electronic invoice issued by Pupu Supermarket is an independent invoice of the supermarket, so it cannot be downloaded. Electronic invoice is the product of the information age. Like ordinary invoices, they are distributed to merchants in the form of unified issuance by the tax bureau. The invoice number is distributed to merchants with national unified coding and unified anti-counterfeiting technology. The electronic invoice is accompanied by the signature mechanism of the electronic tax bureau.