The Best Online Stamp & Seal Makers in 2026 (and How to Choose)

Make 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.

Start from one of these and change the wording, or start from nothing:

Need an official-looking stamp or company seal without ordering a physical one? A handful of online stamp makers let you design one in minutes and download it as an image. They are not all the same, though, and the biggest difference in 2026 is not how the stamp looks, but whether anyone can actually verify it. Here is how to choose, what the tools cost, and where a plain image falls short.

What an online stamp maker actually does

An online stamp maker is a browser tool for designing a rubber stamp, company seal, or approval mark, you pick a shape (round seal, rectangle, octagon), add your text around the ring and in the centre, choose a colour, maybe drop in a logo or clip-art, then export it. Most produce a transparent PNG you can paste onto documents.

That covers the basics: an APPROVED stamp, a PAID stamp, a dated received stamp, or a company seal with your registration details. For a lot of everyday paperwork, that is all you need.

What to look for in 2026

Design flexibility, shapes, curved ring text that actually sits on the baseline, clip-art and logo support, and presets for professions (advocate, notary, doctor, engineer) so you are not starting from a blank canvas.

Honest pricing, many tools lock downloads behind a monthly subscription even if you only need one stamp. Pay-as-you-go (a small one-off charge per download) is far better if you stamp occasionally.

Output that fits your workflow, a transparent PNG is fine, but being able to apply the stamp directly onto a PDF saves a round-trip through other software.

Verifiability, the feature most makers skip. Can a recipient confirm the stamp is genuine, or is it just a picture anyone could copy?

The catch with a plain PNG stamp

A stamp image proves nothing on its own. Anyone can right-click, copy it, and paste it onto a document that was never approved. Physical rubber stamps have the same weakness, photograph one and it is reproducible forever. For low-stakes internal use that is fine; for anything a bank, client, registry, or court might scrutinise, it is a liability.

This is where a verifiable stamp matters: one that carries a serial number and a unique verification token, with a QR code or link a recipient can check to confirm it is genuine, see which document it belongs to, and whether it has been revoked. That is something a static PNG, or a physical stamp, can never offer.

How the popular tools compare

Tools like StampJam, Stampdy and MyStampMaker are all capable online stamp makers for producing clean stamp and seal images, typically on a subscription or per-credit basis. They do the design job well.

PDF Verified approaches it differently: you design any stamp or seal free, pay just $1.50 to download it as a transparent PNG (or download free on a paid plan), and you can optionally issue it as a serialized, QR-verifiable seal and apply it straight onto a PDF, sealed with a tamper-evident SHA-256 fingerprint and an audit trail. It is also a full e-signature platform, so stamping and signing live in one place.

If you only ever need a quick image, any of these will do. If you want a stamp someone can actually verify, and pay-as-you-go pricing instead of a subscription, that is the deciding factor.

Design your stamp in a couple of minutes

Open the stamp and seal designer at pdfverified.com/stamp-maker, pick a shape, type your text, add a date or serial number and your logo, and preview it live. Download a transparent PNG for $1.50, or apply a verifiable seal to your PDF. No subscription required to start, and nothing to install.

Questions people ask about this

Which of these can add a stamp to a Word document or an Excel spreadsheet?

Most make an image and leave placing it to you. Being able to add a stamp to a Word document or to an Excel spreadsheet without exporting first is the difference between a generator and a place to finish the job.

Do any of them offer a draft watermark or a confidential watermark?

Some do, and it is worth checking whether the mark becomes part of the page or stays an object the recipient can delete, because only one of those is a warning.

Design a stamp or company seal free →

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.

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