Are Image Seals Legally Valid?
It's a natural question: if you generate a seal that looks exactly like a real one and paste it onto a document, is that document legally stamped? The short answer is no — and understanding why protects you from a real legal risk.
This article is general information, not legal advice. Rules differ by country and situation; consult a qualified professional for your specific case.
What an image seal actually is
A seal exported as a PNG or SVG is a picture. It reproduces the appearance of a stamp, but it has none of the things that give a stamp or signature legal force:
- It does not verify who applied it.
- It does not detect whether the document was altered after the seal was added.
- It leaves no record of when or by whom it was used.
Because it's just an image file, anyone who has a copy can place it on any document. That's exactly why a plain image cannot, on its own, make a document legally binding. For the full distinction between an image and a real e-signature, see electronic seal vs. electronic signature.
The risk of misuse
This is the serious part. Using a generated seal to impersonate an organization, forge an official document, or create something intended to have legal effect can constitute forgery or fraud — which carries civil and criminal liability in most jurisdictions. The fact that a seal was made with a free online tool is not a defense.
This tool exists to design and visualize seals, not to fabricate documents. Producing a counterfeit seal or a fraudulent document is misuse, full stop.
How to use an image seal lawfully
There are plenty of legitimate uses for a seal graphic:
- Design and branding — prototyping a logo-style seal or visual identity.
- Mockups and presentations — showing how a stamped document will look, in a demo or slide deck.
- Learning and reference — studying seal layouts, fonts, and conventions.
- Lawful personal use — non-deceptive, non-binding personal projects.
In all of these, the seal is decorative or illustrative — nobody is being misled into thinking a document is officially executed.
When you need real legal effect
If a document must be binding, use a compliant electronic signature or e-seal platform that provides verified identity, tamper protection, and an audit trail. Requirements vary by region — see our guides for China, Japan, and Korea.
The seal generator is built for the design and mockup uses above. Use it freely for those — and reach for a compliant system the moment a document needs to carry legal weight.
Related guides
- Electronic Seal vs. Electronic Signature: What's the Difference?Electronic seals, electronic signatures, and digital signatures are often confused. Here's what each one actually is, why a seal image is not the same as a legal signature, and when you need a compliant system.
- Company Seals in Thailand: The One Country Where the Seal Is Registered With the StateThailand's company seal is optional under the Civil and Commercial Code — but once you register it with the DBD and write it into your signing authority, it becomes mandatory for your own documents. How the ตราสำคัญ works, what the design rules allow, and how to handle it digitally.
- Seal Placement Guide: Where to Put a Digital Seal on a DocumentA practical guide to placing a seal image on contracts, invoices, certificates, forms, and multi-page PDFs without hurting readability or implying legal effect.