The seal for digital documents
Seal what you send.
Your software puts your users' seal on their quotes and invoices. Their clients see in one click that the document comes from them, untouched.
A gesture that crossed the centuries
In the Middle Ages, an intact wax seal proved who wrote the letter, and that it stayed closed.
Deepstamp does the same for your PDFs.
Demo
He touches one digit. The seal breaks.
This is exactly what the client sees.
See a real verification page30 sto edit a PDF.
1 clickto prove the original.
AI can remake any invoice. Only the original carries the seal.
+29%more help requests for payment fraud in French companies in 2024. Source: Cybermalveillance.gouv.fr
How it works
Your users keep their habits.
- 01Your software creates the PDF.Same as today.
- 02The seal goes on.In your user's name, as the PDF comes out.
- 03Their client verifies.One click, free, no account. They see your user's logo.
Also in Outlook: every attachment leaves sealed.Discover the add-in
For your software
An option you sell. Or one you give.
One more edge over your competitors, and reassured clients for your users.
For your tech team
What to know before plugging it in.
- Integration
- An API called when the PDF comes out. We wire it with your team, live.
- Formats
- PDF, Word, Excel, PowerPoint and images. The seal sits in the margin, the content stays identical.
- Factur-X and signed PDFs
- Kept as they are, with a proof by link.
- Verification
- On deepstamp.fr, no account, in French and English, with your user's logo.
- Hosting
- Servers in Paris, data in Europe. GDPR processing agreement provided.
- Zero integration
- The Outlook add-in seals attachments today.
The questions we get.
Answers from Benjamin, cofounder
We already have e-signatures.
They cover signed documents. The seal covers everything else: quotes, deposits, invoices, bank details.
Our clients barely know Deepstamp.
They see your user's name and logo. Deepstamp stays in the background, like a website's padlock.
What about French e-invoicing?
Your approved platform secures invoices between French companies, inside its network. The seal travels with everything outside it: PDFs by email, quotes, invoices to consumers and abroad.
What does the client see if the document was changed?
A clear warning: changed after sending. They contact the issuer before paying.
How much does it cost?
Free 3-month pilot. Then a plan based on your document volume, which you resell or offer to your users.
Verifying is free.For everyone.Forever.
On deepstamp.fr, no account, with the issuer's logo.
A real conversation
Let's talk for ten minutes.
Benjamin and Célia, 19, from Antibes. We built Deepstamp together, and we pick up the phone ourselves.
- Benjamin Mathiasco-founder
- Célia Assematco-founder
5 free 3-month pilots. Then, a plan based on your volume.
Or call+33 7 69 59 89 12