What is Official Seal?

A formal seal applied by an authority or organisation to certify that a document is authentic and officially issued.

An official seal is a mark of authority applied to certify that a document, a certificate, licence, resolution, or attestation, was officially issued by the named body. Government departments, notaries, schools, and companies all use official seals. Digitally, an official seal pairs a recognisable visual mark with verifiable metadata: who applied it, when, and a tamper-evident link back to the issuing record. PDF Verified supports official-seal stamps with serial numbers, locked metadata hashes, and public QR verification.

Design your company stamp or seal now. Round seals, dated stamps and approval marks, with a date that fills itself in and a serial number that never repeats. Free to design, and it goes straight onto a PDF, a Word file or an Excel sheet.

What makes a seal "official"

Authority and traceability. An official seal must be applied by an authorised holder and be verifiable after the fact. PDF Verified enforces both: stamps live in a controlled library that can be shared only with chosen teammates, and each application writes an auditable, QR-verifiable usage record.

Serial numbers and anti-fraud

Turn on Advanced serialization and each application of the official seal gets a unique serial plus a locked metadata hash. Anyone scanning the stamp's QR code reaches a public page showing the serial, the document it was applied to, and whether the seal has since been revoked, making forged or reused seals easy to detect.

What PDF Verified is, and what it is not

A stamp identifies who issued a document. It is evidence rather than a formality that makes a document binding on its own, and it should only ever be made and applied for a business or an office you are authorised to act for: a mark that imitates another organisation in order to pass a document off as theirs is forgery in most places. Where a registry, a bank or a counterparty requires a particular form of seal, that requirement comes from them.

PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.