Take structured e-invoicing (PDFs are pictures - worse than paper). Steps:
1. Go for a four courner model and choose a standard for all to use.
2. Convince also banks to join with the basic e-invoicing service where any enterprenaur (20m SMEs in EU) can fill in the invoice form and press send. For repeat invoices it means copy+new invoice number + new amount + send. Nobody can claim that this is difficult.
3. For higher volumes convince ERP providers to deliver invoices in the standard into file transfer.















