Ufida software uploads invoices, and there is a red cross in the lower right corner to prevent invoices from being forged. There is a red cross on the invoice sub-chapter, which is a procedure to prevent the invoice chapter from being forged. When copying and pasting a stamp, a red cross is automatically added to the stamp to show that it is not the original stamp. 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 uniformly coded throughout the country, and the unified anti-counterfeiting technology is distributed to merchants. The electronic invoice is accompanied by the signature mechanism of the electronic tax bureau.