Fines, complaints and courts · Written evidence · signature verification
Disputing a private-document signature in France
When attributed private writing or a signature is denied, the French judge verifies it unless the case can be decided without it. The procedure may use originals, comparisons, personal appearance or investigative measures; expert examination is not automatic. Electronic signatures are assessed under their own legal validity conditions. AI cannot authenticate a signature from a scan’s appearance.
- Classify the writing
- Court chooses the measures
- AI does not authenticate signatures
- Official texts cited
- Sources checked on
- Drafted with AI assistance, our method
General legal information with official references and dated checks. It is not personalised advice: for a decision that commits you, have your situation checked by a qualified professional.
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Is a disputed electronic signature simply a handwriting comparison?
No. Article 287 refers to Civil Code articles 1366 and 1367’s validity conditions. The process, identification and validity evidence need examination within that framework, not just the visible signature shape.
Read the referencesA private signature is disputed: I can help organise originals, comparisons and procedural acts without declaring a signature genuine or false.
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When does the court verify disputed private writing?
Article 287 covers denied writing or signature and unrecognised writing of an alleged author. The court verifies it unless able to decide without relying on it. Place the document within the claims and other evidence. A signature dispute does not require every unrelated issue in the case to stop.
How can you prepare evidence without deciding authenticity?
Classify the writing and available material. The worksheet organises documents and the route for review without analysing a signature’s shape.
Fictional example · Your preparation worksheet
Preserve the copy unaltered and seek the original. Comparison material and the writing’s relevance are assessed within the procedure.
- Material to preserve
- Disputed contract, original to request and comparison documents
- Preserve the received original or copy and its provenance without alteration.
- Distinguish private writing, authentic instrument and electronic signature.
- Identify comparison documents and people who saw signing without creating artificial samples.
- Have the writing’s role in the dispute and the procedural route examined by the adviser.
This worksheet neither compares signatures nor detects forgery. Verification belongs to the court and any investigative measures it orders.
Which comparison documents may assist the court?
The court uses available material and may order comparison documents or samples under procedural control. Useful documents need not have been created when the disputed act was made. Identify provenance, date, alleged author and available original without manufacturing material to make a comparison appear stronger.
Code de procédure civile : article 288Code de procédure civile : article 289
Which issues should be separated before signature verification?
| Issue | Material to identify | Tool limitation |
|---|---|---|
| Private paper writing | Original, copies and comparisons | No visual authentication |
| Electronic writing or signature | Process and validity evidence | Not a simple shape comparison |
| Authentic instrument | Legal nature and provenance | Another challenge framework |
| Principal claim or incident | Claim, service and submissions | Check procedural effects |
Code de procédure civile : article 287Code de procédure civile : article 288Code de procédure civile : article 297Code de procédure civile : article 298
What does the governing text say about signature verification?
le juge vérifie l'écrit contesté à moins qu'il ne puisse statuer sans en tenir compte.
In plain English: Article 287 provides for judicial verification where the decision depends on disputed writing. Comparisons and investigative measures occur within that framework; AI visual recognition is not a substitute.
Is handwriting expertise always required?
No. The judge may order personal appearance, hear people who saw writing or signing and take useful measures, including technical assistance where needed. The choice depends on the file. A software similarity score or visual comparison of scans does not replace that judicial assessment.
Code de procédure civile : article 291Code de procédure civile : article 292Code de procédure civile : article 293
How should originals and third-party documents be preserved?
The procedure provides for deposit, preservation and access to disputed and comparison material. The court can organise production of third-party documents with necessary safeguards. Preserve received files and their transmission unaltered; seek the original rather than inferring authenticity or worthlessness from scan quality alone.
Code de procédure civile : article 289Code de procédure civile : article 290
Why distinguish an incident in a case from a principal verification claim?
Verification can arise within a dispute relying on the writing or through a principal claim. In the latter, personal service and nonappearance have specific effects; without personal service the verification rules still apply. Do not copy a denial formula without identifying the document received and procedure started.
Code de procédure civile : article 296Code de procédure civile : article 297Code de procédure civile : article 298
What else should you know about signature verification?
Is a disputed electronic signature simply a handwriting comparison?
No. Article 287 refers to Civil Code articles 1366 and 1367’s validity conditions. The process, identification and validity evidence need examination within that framework, not just the visible signature shape.
Can denying a signature later judicially established carry a sanction?
If the document is judicially found written or signed by the person who denied it, article 295 provides a civil fine up to 10,000 euros, without prejudice to damages. The finding is judicial, not a tool’s opinion.
Does a disputed notarised instrument use this same private-writing route?
This page concerns private writing. An authentic instrument follows another challenge framework, including the forgery procedure. Establish the document’s legal nature before choosing a model or judge.
Does a poor-quality copy prove the signature is false?
No. Legibility and authenticity are different issues. Preserve the copy, seek the original and record its limitations. Assessment uses evidence and measures within the procedure.
Code de procédure civile : article 287Code de procédure civile : article 288Code de procédure civile : article 289
Which sources explain signature verification?
- Code de procédure civile : article 287République française / DILA : Légifrance
- Code de procédure civile : article 288République française / DILA : Légifrance
- Code de procédure civile : article 289République française / DILA : Légifrance
- Code de procédure civile : article 290République française / DILA : Légifrance
- Code de procédure civile : article 291République française / DILA : Légifrance
- Code de procédure civile : article 292République française / DILA : Légifrance
- Code de procédure civile : article 293République française / DILA : Légifrance
- Code de procédure civile : article 294République française / DILA : Légifrance
- Code de procédure civile : article 295République française / DILA : Légifrance
- Code de procédure civile : article 296République française / DILA : Légifrance
- Code de procédure civile : article 297République française / DILA : Légifrance
- Code de procédure civile : article 298République française / DILA : Légifrance
Texts cited last checked: 19 October 2026