What is Rubber Stamp?

The classic ink-on-paper stamp, and how to replace it with a digital rubber stamp you can apply to PDFs online.

A rubber stamp is the traditional ink stamp pressed onto paper to mark a document APPROVED, PAID, RECEIVED, or to apply a company seal or date. A digital rubber stamp does the same job on a PDF, you design or upload the stamp once, then apply it to documents online with no printer, ink pad, or scanner. PDF Verified includes a free online stamp maker, and on Business plans every stamp application gets a serial number and a public QR verification link, which an ink stamp can never offer.

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.

How to use a rubber stamp online

Upload your PDF, open the editor, add a Stamp field, and pick your stamp, a custom design, an uploaded image of your existing rubber stamp, or a ready-made APPROVED / PAID / date stamp. The mark is baked into the sealed PDF when the document completes.

Custom rubber stamp maker

In Settings → Stamps you can build a custom stamp in seconds: round or rectangular, your company name, a centre line of text, a date. It mirrors what a stamp shop would engrave, but it is reusable on every document and never runs out of ink.

Why digital beats ink

An ink impression can be photographed and pasted into any document, there is no way to prove which impression is genuine. A PDF Verified stamp mints a serial number and a /verify-stamp QR link on every application, so anyone holding the document can confirm the stamp is real, see what it was applied to, and check it has not been revoked.

Is a rubber stamp legally required?

In most jurisdictions a signature, not a stamp, is what binds a contract, the stamp is evidentiary and cultural. But in Kenya, Nigeria, India, the UAE, China, and much of the Middle East and Asia, a company stamp or chop is still expected on commercial paperwork, and a verifiable digital stamp satisfies that expectation with a stronger audit trail.

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.