On 22 April 2021, the Secretary of Finance released a new dispatch (Despacho Nº 133/2021-XXII) which postpones the requirement to apply QES on non-EDI e-invoices, e.g. PDF invoices, until 1 October 2021. Previously, this regulation was announced to enter into force on 1 July 2021.   As of 1 October 2021, after the deadline expires, all non-EDI, incl. PDF, invoices will be required to be signed with QES (Qualified Electronic Signature) in order to be considered valid for fiscal purposes. This requirement applies to any transaction types, be it B2C, B2B or B2G.