Electronic signature vs handwritten: the comparison

Two signatures, one same function

A signature, whether electronic or handwritten, fulfils three identical legal functions: it identifies the signatory, expresses their consent to the content and guarantees the integrity of the document. What changes is the technique that provides proof of each of these three functions.

Contrary to popular belief, an electronic signature is not a digital imitation of paper. It is a cryptographic process that, in many respects, is more robust than a manual signature.

Legal value

Both signatures are recognised as equivalent under French law since the law no. 2000-230 of 13 March 2000 (article 1367 of the Civil Code). The European eIDAS regulation strengthened this equivalence in 2016 by establishing the principle of non-discrimination: an electronic signature cannot be rejected as evidence solely because it is electronic.

For perfect equivalence with handwritten signature, you need to aim for a qualified signature (QES): it has the same legal value as a handwritten signature throughout the European Union. Advanced (AES) and simple (SES) signatures remain perfectly valid, but their evidentiary value is assessed on a case-by-case basis by the judge — see the differences between the three levels.

Speed

This is the most striking point for operational teams.

Stage | Paper | Electronic

Document preparation | 10 min | 2 min

Sending to signatory | 1 to 3 days (post) or minutes (scan) | < 1 minute

Return signed | 2 to 5 days on average | Minutes to a few hours

Filing / archiving | Manual | Automatic

Over a complete business cycle, electronic signature divides the timeframe by 5 to 10. On large volumes (HR, real estate, training), the impact on cash flow and customer satisfaction is measurable.

Traceability

Paper leaves only a scribble. It is impossible to prove when exactly the signature was made, where it comes from, or if the document has been altered since.

Electronic signature, by contrast, carries a timestamped audit trail:

• precise date and time of each viewing and signature

• signatory's IP address, browser identifier

• proof of identification (OTP code entered, authentication)

• cryptographic fingerprint of the document that invalidates any later modification

This audit trail is integrated into the final PDF and remains viewable for 10 years. In case of dispute, it constitutes the main evidence that can be produced to a court. See proof of electronic signature.

Complete cost

The direct cost of paper (sheet + printing) is deceptively low. The complete cost includes:

• printing + consumables

• registered postage with AR (between €5 and €10 per shipment)

• administrative time (preparation, follow-ups, filing)

• physical storage over 10 years

• risks of loss or damage

Commonly accepted estimates in the profession place the complete cost of a paper cycle around €15 to €35 per document. Electronic signature typically costs less than one euro per envelope on an enterprise plan.

The advantages that favour electronic

• drastic time savings (cycles divided by 5 to 10)

• reduction in administrative costs

• superior traceability thanks to the audit trail

• signature at distance possible, without travel

• centralisation of signed documents in a dashboard

• automatic follow-ups of inactive signatories

• instant archiving and retrieval

• reduction in paper footprint and carbon footprint

• smooth and modern customer experience

When paper still has its place

Certain acts still require paper form or specific procedures:

• authentic acts executed before a notary (certain wills, donations)

• civil status acts (signature before the officer)

• certain legal proceedings (service by bailiff)

For all other everyday documents in a company, electronic signature is largely preferable.

Comparative use case: a freelance contract

Let's take a freelance services contract worth €5,000.

On paper: printing, sending registered (€7), waiting 2-4 days, telephone follow-up, return 3-5 days later, scanning for archiving, physical filing. Total: 5-9 days cycle, risk of loss, weak evidence in case of dispute.

With electronic signature: envelope prepared in 3 minutes, instant dispatch, signature by OTP in less than an hour, signed PDF archived automatically with audit trail. Strong evidence, marginal cost.

How Certyneo helps you

Certyneo allows you to replace all of your contractual paper flows with a simple digital experience: upload the PDF, add signatories, place fields, send. The signatory receives an email, clicks, signs — no account to create, no app to install.

For each document signed, Certyneo automatically generates the final PDF with audit footer, archives everything for 10 years and gives you a dashboard to track in real time the status of each envelope.

Discover the Certyneo electronic signature solution

FAQ

Is an electronic signature easier to contest?

No, it's actually the opposite in most cases. The timestamped audit trail, IP address and strong authentication make electronic signature harder to contest in good faith than a simple manual signature.

Can you print a document signed electronically?

Yes, but printing loses the evidentiary value. It is the digital PDF that carries the cryptographic signature and fingerprint. Once printed, you just have a visual copy.

Can a handwritten signature be scanned and used as an electronic signature?

A scanned image pasted into a PDF is not an electronic signature in the eIDAS sense — it offers neither identification nor integrity. For a valid signature, use a dedicated platform.

Do bilingual contracts require two signatures?

No. A single bilingual PDF can be signed once. Electronic signature has nothing to do with the language of the document.

How do you archive a document signed electronically?

The signed PDF is archived like any other digital file, but it is recommended to keep the audit trail and timestamp. See how to archive a signed document.

Conclusion

Electronic signature is not a "substitute" for paper: it is an improvement. Faster, more traceable, less costly, legally equivalent in the vast majority of cases. The real question is no longer if you should move to digital, but when.

Try Certyneo to send, sign and track your documents online simply, quickly and securely.