Why seal your documents, and what the seal lets a client check
Quotes, invoices and contracts travel as PDFs that anyone can edit or copy. A seal gives the person receiving one a way to check it against what you actually issued.
Invoices2 articles
How to verify an invoice is real before you pay it
To check that an invoice is real, confirm it through a channel you already trust, not through the invoice itself. Phone the supplier on a number you already hold, and compare the bank account, amount and reference with your own records.
