📜
Pillar guide
INPI Guichet Unique electronic signature: full guide 2026
Everything about the electronic signature on the INPI Guichet Unique: required level, providers, alternatives, troubleshooting.
📝
Tutorial
How to sign an INPI document: step-by-step
Step-by-step guide to signing an INPI formality on the Guichet Unique in 5 minutes without getting stuck.
€
Comparison
INPI electronic signature: pricing 2026
Real prices from French providers: €29 unitary vs €800/year subscriptions. The trap of yearly plans.
⚖
Comparison
Universign vs Yousign vs DocuSign vs AR24: INPI comparison
Independent comparison of the 5 major qualified signature providers for INPI in 2026.
FC
Pain point
FranceConnect+ doesn't work on INPI
Blank page, orange banner, infinite loop: all classic FranceConnect+ failures and how to unblock.
⚖
Understanding eIDAS
Advanced vs Qualified eIDAS signature: which one for INPI?
Detailed technical and legal differences between the 3 eIDAS levels.
🇪🇺
Understanding eIDAS
EU Trust List: choosing a qualified provider
How to verify a provider is officially recognised, and why it matters for INPI acceptance.
📜
Understanding eIDAS
eIDAS Regulation 910/2014: what you need to know
Foundations of European law on qualified signature, and consequences for your INPI formalities.
!
Pain point
INPI summary rejected: 7 reasons and how to unblock
Diagnose the cause and fix in 5 minutes. The 7 most common rejection reasons.
⚠
Pain point
Advanced signature rejected by INPI: why
Why the "advanced" level isn't enough and how to switch to qualified quickly.
↻
Alternative
Alternative to FranceConnect+ for INPI
All legally equivalent alternatives that work in 2026.
∅
Alternative
Sign on INPI without FranceConnect
Complete method to validate a Guichet Unique formality without FranceConnect+.
🆓
Comparison
Free INPI electronic signature: what works
99% of free solutions are rejected by INPI. The only one that works, and its limits.
⬜
Pain point
Blank page on INPI: troubleshooting guide 2026
Blockers, VPN, cache: complete troubleshooting + qualified alternative.
🆔
Pain point
La Poste Digital Identity rejected: alternatives
IDN refused, post office appointment impossible, delays too long? Working alternatives.
📝
Tutorial
Amend SAS articles on Guichet Unique: tutorial
Step by step: director change, registered office, share capital. All required documents.
⬇
Tutorial
How to download the INPI summary step by step
Where to find the PDF, in what format, and how to verify it before signing.
📊
Tutorial
File annual accounts on INPI: complete guide
Legal deadlines, mandatory documents, qualified signature, confidentiality declaration.
↻
Alternative · 🇫🇷
Alternative à FranceConnect+ pour signer sur l'INPI
All legally equivalent alternatives to FranceConnect+ that work in 2026.
∅
Alternative · 🇫🇷
Signer sur l'INPI sans FranceConnect
Complete method to validate a Guichet Unique formality without depending on FranceConnect+.
!
Pain point · 🇫🇷
Synthèse INPI refusée : 7 raisons et comment débloquer
Diagnose the cause and fix in 5 minutes. The 7 most common rejection reasons.
⚠
Pain point · 🇫🇷
Signature avancée INPI refusée : pourquoi
Why the "advanced" level is not enough and how to switch to qualified quickly.
⬜
Pain point · 🇫🇷
Page blanche sur l'INPI : guide de dépannage 2026
The INPI portal shows a blank page after authentication? Blockers, VPN, cache: full troubleshooting.
🆔
Pain point · 🇫🇷
Identité numérique La Poste rejetée
IDN request refused, post office appointment impossible, delays too long? The alternatives that work.
⚖
Understanding eIDAS · 🇫🇷
Signature avancée vs qualifiée eIDAS
Detailed technical and legal differences between the 3 eIDAS levels.
🇪🇺
Understanding eIDAS · 🇫🇷
EU Trust List : choisir un prestataire qualifié
How to verify a provider is officially recognised, and why it matters for INPI acceptance.
📜
Understanding eIDAS · 🇫🇷
Règlement eIDAS 910/2014 : ce qu'il faut savoir
Foundations of the European regulation underlying qualified signature, and consequences for your INPI formalities.
🆓
Comparison · 🇫🇷
Signature électronique gratuite INPI : ce qui marche
99% of free solutions are rejected by the INPI. The only one that works, and its limits.