Sign your INPI summary document online
Advanced electronic signature built for the Guichet unique. You receive your signed document by email within minutes.
For INPI filings or public procurement.
From €19.90 incl. VAT, One-time payment, no subscription
Independent private service, not affiliated with INPI or any government body.
European eIDAS regulation
A question?Our team answers 7 days a week
Stuck at the “Signature” step of the INPI Guichet unique?
It’s the last step of your filing on the Guichet unique (the INPI online filing portal), and often the hardest.
FranceConnect+ isn’t working
Login fails, or you don’t have the digital identity required to sign.
Signature rejected at filing
The Guichet unique won’t accept your signature and your filing stays blocked.
A deadline coming up
Your filing needs to go out fast, with no appointment or extra steps.
Sign from your computer or phone
No software to install, no USB key, no video appointment. Upload the summary document downloaded from the Guichet unique, draw your signature, then confirm it with the code sent to you by email. Your signed document lands in your inbox, ready to file on the INPI website.
Your document signed in 3 steps
No account or software needed. All you need is your summary document and an email address.
Upload your document
Download the summary document from the Guichet unique, then upload it as a PDF.
Draw your signature
Draw your signature with your finger or mouse, then confirm with the code sent by email.
Receive your signed document
Your signed document arrives by email within minutes. It’s ready to file on the Guichet unique.
Your document is checked as soon as you upload it, before any payment
A real PDFThe summary document is uploaded as a PDF, not as a photo or a Word document.- Readable and unlockedThe file opens in full and is not protected by a password.
- 15 MB at mostThe size of a usual summary document, with all its pages.
What does the summary document look like?
It is the PDF offered for download at the “Signature” step of your filing. Its first line: “GUICHET UNIQUE DES ENTREPRISES — Synthèse de dépôt”.
Something to fix? A message tells you what to do, and you have paid nothing.
Everything you need to unblock your INPI filing
Upload your summary document
Download the summary document from the INPI Guichet unique, then upload it as a PDF. We automatically check that it’s the right document before signing.
Recognised by the Guichet unique
eIDAS advanced electronic signature
Your documents stay confidential
Draw your signature
Draw your signature with your finger or mouse, in seconds. It is applied to your document with the advanced electronic signature (eIDAS).
- Recognised by the Guichet unique
- eIDAS advanced electronic signature
- Your documents stay confidential
Confirm with a code sent by email
A 6-digit code is sent to you by email. It confirms that you are the one signing, with no video appointment or special device.
- Recognised by the Guichet unique
- eIDAS advanced electronic signature
- Your documents stay confidential
Receive your signed document
Your signed document arrives by email within minutes. All that’s left is to file it on the Guichet unique to complete your filing.
- Recognised by the Guichet unique
- eIDAS advanced electronic signature
- Your documents stay confidential
A team by your side 7 days a week
A question, a filing that gets stuck? Our team replies by email, even at weekends.
- Recognised by the Guichet unique
- eIDAS advanced electronic signature
- Your documents stay confidential
An advanced electronic signature, recognised across the European Union
ClairSign applies an advanced electronic signature (eIDAS), backed by a trust service provider listed on the European Union Trusted List.
Your documents are sent encrypted and used only for your signature.
- European eIDAS regulationSignature recognised across the European Union
INPI Guichet uniqueThe official business filings portal
EU Trusted ListTrust service provider on the EU Trusted List
All Guichet unique filings
Works on all your devices
Sign from a Windows or Mac computer, an iPhone or an Android phone, with the browser of your choice. No software to install, no account to create: your document and an email address are all you need.
Computer Windows or Mac
Phone iPhone or Android
Tablet iPad or Android
- Chrome
- Safari
- Firefox
- Edge
A simple, fast INPI signature service, with support
Secure
Advanced electronic signature (eIDAS) and documents sent encrypted.
Works with the Guichet unique
Your signed document can be filed directly on the Guichet unique.
On all your devices
Computer, tablet or phone: sign wherever you are.
An advanced electronic signature (eIDAS)
Ready to upload to the Guichet unique
Your documents protected
Built for trust
The electronic signature behind your filings
An advanced electronic signature under the European eIDAS regulation, a confirmation code sent by email, and a team that replies 7 days a week.
3
Steps to sign
upload, draw, confirm
27
European Union countries
where the eIDAS regulation applies
7/7
A team that answers
by email
0€
Subscription
one‑off payment, no commitment
Frequently asked questions
Which document should I upload?
The summary document (document de synthèse) for your filing, in PDF format. You download it from the INPI Guichet unique, at the signature step.
How long does it take?
A few minutes. You upload your document, draw your signature and confirm with the code sent by email. Your signed document then arrives by email.
How much does it cost?
From €19.90 incl. VAT, as a one‑off payment with no subscription. The exact price for your filing is shown before any payment.
Will my signed document be accepted by INPI?
Your document receives an advanced electronic signature (eIDAS). It is backed by a trust service provider listed on the European Union Trusted List. The signed document is then filed on the Guichet unique, at the “Signature” step of your formality.
Do I need a video appointment or a special device?
No. A computer or phone and an email address are all you need.
What happens if my filing gets stuck?
Email us: our team looks at your case and helps you 7 days a week. If your document could not be signed within 24 hours of your payment, you can request a full refund.
Are my documents protected?
Yes. Your documents are sent encrypted and used only for your signature.
What name appears on my bank statement?
A licensed payment provider collects the payment and sends you the receipt. On your statement, the line shows “CLAIRSIGN”.
Accepted for every type of business
Micro-entreprise, sole proprietorship or company: a single service
Simple pricing, shown before any payment
INPI signature
Refund on request if signing was not possible within 24 hours
Support
A question?
Sign your document now.
Upload your summary document, sign and receive your signed document by email. It’s simple, secure and built for the Guichet unique.
Advanced electronic signature (eIDAS) for your filings on the INPI Guichet unique.
Our team replies 7 days a week, by email.
Write to usExact amount shown before you pay, with no hidden fees.