Free e-Signature Tools for Contracts in India (and IT Act Validity)

"Free e-signature tool" means something different depending on which box you tick after you sign. Some free routes produce a signature Indian courts presume genuine unless the other side proves otherwise. Others produce a signature that is perfectly valid, but if it is denied later, you have to prove it was really the other party, using whatever audit trail you kept. This guide (published by Adira, which makes contract lifecycle management software, so we have a commercial interest in you eventually wanting a paid CLM, but the comparison below stands on its own) tests the actual free and low-cost e-signature routes available to someone signing a contract in India: the free tiers of DocuSign, Adobe Acrobat Sign, Zoho Sign, and Dropbox Sign, the genuinely free Aadhaar eSign route, a self-managed Digital Signature Certificate (DSC), and reading a contract before you sign it, for free, in Weave. The India legal layer below tells you which of these gets the court presumption and which does not, and why that gap matters more than any free-tier document cap.

The comparison, tested

Free-tier terms change often. Treat the numbers below as a snapshot, checked in September 2026, and re-verify on the vendor's own pricing page before you rely on a specific limit.

Tool	Free docs/month	Signature type	s.85B secure signature?	Aadhaar eSign support	Stamping handled?	Data location
DocuSign	No standing free plan; a time-boxed trial only (historically around 30 days, a capped pool of envelopes, terms vary by account)	Standard click-to-sign (typed or drawn name)	No, by default	Not built in for India; needs a connector or separate flow	No	US-hosted by default; India data residency is a paid add-on
Adobe Acrobat Sign	No standing free plan; 30-day free trial, full feature set, no card required upfront	Standard click-to-sign	No, by default	No native Aadhaar eSign flow	No	US/EU-hosted by default
Zoho Sign	Real free plan: up to 5 documents a month, 1 user, basic audit trail	Standard click-to-sign	No, by default	Available as a paid India add-on, not on the free plan	No	Choice of data centre, including India, on paid plans
Dropbox Sign	Real free plan: 3 signature requests per rolling 30-day cycle from signup, unlimited self-signing	Standard click-to-sign	No, by default	No native Aadhaar eSign flow	No	US-hosted
Aadhaar eSign (via a licensed ASP, e.g. through DigiLocker for individuals)	Free for individual use through DigiLocker; a business routing through an ASP pays per signature	Aadhaar OTP or biometric eSign, an IT Act s.3A "electronic signature"	Yes, when used correctly, it qualifies as "secure" under s.14	Yes, this is the Aadhaar eSign route itself	No	India-hosted; DigiLocker and the licensed ESPs (NSDL, CDAC) operate under Indian government oversight
Self-managed DSC	Not free; a Class 3 DSC typically costs roughly Rs 800-2,500 a year from a licensed CA, plus a USB token if not cloud-hosted, market rate, verify with the CA	Digital Signature Certificate, an IT Act s.3 signature	Yes, when used correctly	No, it is a separate mechanism from Aadhaar eSign	No	Depends on the Certifying Authority
Weave (read and mark up before signing)	Free for reading, highlighting, and commenting on a contract	Not a signing tool; used before you pick a signature method	N/A	N/A	N/A	Browser-based

What the free tier of each vendor actually gets you

DocuSign has no permanent free plan for sending documents. What gets called "free DocuSign" is a time-boxed trial, and DocuSign's own account terms describe limits that shift by promotion, historically around 30 days with a capped pool of envelopes. Adobe Acrobat Sign follows the same pattern: a genuine 30-day trial with the full enterprise feature set and no card required, framed by Adobe as a way to evaluate a paid subscription rather than a standing free tier.

Zoho Sign and Dropbox Sign are different: both publish an actual free plan usable indefinitely, not a trial. Zoho Sign's free plan gives one user up to 5 documents a month with a basic audit trail, enough for an individual or a very small side project but not routine business volume. Dropbox Sign's free plan gives 3 signature requests per rolling 30-day cycle from signup, plus unlimited self-signing.

None of these four vendors builds Aadhaar eSign into their free tier for an Indian signer. Zoho Sign offers Aadhaar eSign as a paid India-specific add-on on its higher plans; DocuSign and Adobe support DSC-based signing through partner integrations, again not on the free tier. If Aadhaar eSign or DSC support is the reason you are comparing tools, the free tiers of these four vendors are not where you find it. What their standard signature produces, free tier or paid, is a click-to-sign: a typed or drawn name, tied to an IP address and a timestamp.

The genuinely free Indian route: Aadhaar eSign

This is the option most "free e-signature" comparisons skip, and it is the strongest one available to an individual Indian signer at zero cost. DigiLocker, the Government of India's document wallet, has a built-in eSign feature: link Aadhaar to a registered mobile number, upload the PDF, and authenticate with an OTP or biometric. For a business that wants to embed Aadhaar eSign into its own signing workflow rather than a signer using DigiLocker directly, the route runs through a licensed Application Service Provider (ASP), which is empanelled with an eSign Service Provider (ESP), currently NSDL e-Governance or CDAC, the two entities licensed to issue the certificates behind an Aadhaar eSign. Per-signature pricing at that business-to-business layer commonly runs in the range of a few rupees up to roughly Rs 20-25 depending on the provider and volume, so "free" mainly describes an individual using DigiLocker directly, not a company running Aadhaar eSign at scale through an ASP.

The legal upside is specific, not generic marketing. Aadhaar eSign is one of two techniques India's law recognises as a formal "electronic signature," alongside a DSC. Section 3A of the Information Technology Act, 2000 sets the bar a technique must clear:

"A subscriber may authenticate any electronic record by such electronic signature or electronic authentication technique which: (a) is considered reliable; and (b) may be specified in the Second Schedule." Source: Section 3A, Information Technology Act, 2000, Indian Kanoon

Aadhaar eSign sits inside that Second Schedule. That is why a document signed this way, done correctly, gets an evidentiary advantage none of the four vendors' default click-signatures gets, explained below. The limitation is real too: it works only if the signer has Aadhaar linked to a live mobile number or biometric enrolment, which rules out most foreign counterparties and NRIs without Aadhaar, and it is a one-signer-at-a-time flow, not a multi-party envelope with routing and reminders. A full side-by-side of Aadhaar eSign against a DSC and plain click-to-sign, including cost and identity assurance, is here: Aadhaar eSign vs DSC vs click-to-sign.

Self-managed DSC: the other route to a secure signature, but not free

A Digital Signature Certificate, issued by a Certifying Authority (CA) licensed by the Controller of Certifying Authorities (CCA), is the other technique the IT Act formally recognises. Since 1 January 2021 the CCA discontinued the lower-assurance Class 2 category, so every DSC issued today is Class 3, the highest identity-assurance class. A Class 3 DSC typically costs roughly Rs 800-2,500 a year from a licensed CA (eMudhra, (n)Code Solutions, Capricorn Identity Services, and Sify are among the licensed CAs), plus a USB token if it is not cloud-hosted, at rates that vary by CA. It is not free, and calling it a free option overstates the case, but for someone who signs frequently, especially for MCA filings, GST returns, or e-tender submissions where a DSC is often mandated outright, the annual cost buys a reusable secure signature rather than a per-document Aadhaar eSign fee.

Read the contract before you decide how to sign it

Signing is usually the last step people should take, not the first. Before committing to any signature method, it helps to actually read the contract and flag the clauses that need a second look, including the execution clause itself. That step is free and does not depend on which signing tool you eventually pick: you can highlight, comment on, and mark up a contract, execution clauses included, directly in Weave, Adira's free browser-based contract review tool, before you touch a signature workflow at all.

The India legal core: which signature actually gets you the court presumption

Whichever free tool produces the click-signature, the resulting contract is valid. Section 10A of the IT Act protects contracts formed electronically:

"Where in a contract formation, the communication of proposals, the acceptance of proposals, the revocation of proposals and acceptances, as the case may be, are expressed in electronic form or by means of an electronic record, such contract shall not be deemed to be unenforceable solely on the ground that such electronic form or means was used for that purpose." Source: Section 10A, Information Technology Act, 2000, Indian Kanoon

But "valid" and "provable without a fight" are two different things. Section 85B of the Indian Evidence Act, 1872 reserves an automatic court presumption for a narrower category, a "secure electronic signature":

"In any proceedings, involving secure electronic signature, the Court shall presume unless the contrary is proved that (a) the secure electronic signature is affixed by subscriber with the intention of signing or approving the electronic record..." Source: Section 85B, Indian Evidence Act, 1872, bare act text (Devgan.in)

A signature only reaches "secure" status, under Section 14 of the IT Act, if it is uniquely linked to the signer, was under their sole control at the time of signing, and any later alteration is detectable, achieved procedurally by the Section 3A route: a DSC or an Aadhaar eSign, both issued through a CCA-licensed CA. A plain click-to-sign, whether it came from DocuSign's free trial, Zoho Sign's free plan, or any other vendor's default flow, is not on that list. If the signer later denies it, the burden sits with you to prove it was them, typically using the platform's audit trail (IP address, timestamp, email confirmation). If it was a DSC or Aadhaar eSign, that burden flips onto the person disputing it. The test you can run on any tool you are evaluating: ask whether the signature is generated through a CCA-licensed Certifying Authority. If the answer is no, you are getting a click-signature, whatever the marketing calls it, and you should plan your audit trail accordingly.

None of these methods, free or paid, works on the First Schedule documents the IT Act excludes from its scope entirely: a negotiable instrument other than a cheque, a power of attorney, a trust deed, a will, and a contract for the sale or conveyance of immovable property. Those still need a wet-ink signature. Full framework, the two recognised signature types, and every exclusion: are electronic signatures legally valid in India.

Stamping is a separate question, and it is still required

Nothing above touches stamp duty. An e-signed agreement is still an instrument under the Indian Stamp Act, 1899 and the applicable state Stamp Act, and duty attaches to the document regardless of which signature method, free or paid, secure or not, was used. None of the tools compared here handle stamping automatically; you arrange it separately, before or shortly after signing depending on your state's rules, and an unstamped instrument that should have been stamped risks being treated as inadmissible in evidence.

A privacy note before you upload anything

Every vendor tier above except Aadhaar eSign and a self-hosted DSC workflow involves uploading your contract to a third-party server. Before you send a real, confidential contract through any free signup flow, open the vendor's own privacy policy or terms page, not a summary site, and search it for "retain," "delete," and, if the tool has any AI-assisted feature, "train." A vendor that cannot tell you in its own policy how long it keeps your document, or whether an AI feature trains on it, is not one to trust with a real contract, free tier or not. Aadhaar eSign through DigiLocker and a DSC token both avoid this exposure, since the signing happens through a government-linked or locally held certificate rather than a third party's document-hosting pipeline.

Red flags

Normal	Red flag	Why it matters
Free-tier document limit stated clearly on the vendor's own pricing page	Limit only found on a comparison site or forum post, not the vendor	Free-tier terms change often; a stale third-party number leads to a mid-signing surprise
A standard click-signature used for routine, lower-value contracts	A standard free-tier click-signature used for a high-value or first-time-counterparty deal	You lose the Section 85B presumption exactly where a dispute is most likely
Aadhaar eSign or a DSC used where the signer needs the secure-signature presumption	Aadhaar eSign attempted for a foreign signer with no Aadhaar	The flow cannot complete, or the platform quietly falls back to click-to-sign
A power of attorney, will, trust deed, or property sale agreement executed on paper	Any of these sent through a free e-sign tool "because it's free and easy"	First Schedule documents are outside the IT Act's scope; no e-signature validly executes them
Audit trail (IP, timestamp, method) exported and stored where the team can retrieve it later	Audit trail left inside a free account that lapses when a trial ends	You may struggle to produce the record a court needs under Section 65B/63
Vendor's privacy policy states a clear retention period and AI-training position	Vague or absent language on retention and training	You cannot judge whether a confidential contract is safe to upload
Stamping arranged separately, regardless of signing method	Assumption that a "legally valid" e-signature means stamping is no longer needed	Duty attaches to the instrument, not the signature method

Fixing a clause written for "whichever free tool is available"

Bad (common in cost-conscious startup templates): "This Agreement may be executed using any free or low-cost electronic signature tool available to the parties, and such execution shall be deemed valid and binding for all purposes."

What is wrong: it treats every free tool's click-signature as legally equivalent, does not name a method, ignores the First Schedule exclusion, and says nothing about keeping the audit trail once a free account lapses.

Better: "This Agreement may be executed and delivered electronically. For Agreements exceeding INR [X] in value, or where either party reasonably anticipates dispute, execution shall use Aadhaar eSign (Information Technology Act, 2000, s.3A) or a Digital Signature Certificate (s.3), each a secure electronic signature under s.14 of the Act for the purposes of s.85B of the Indian Evidence Act, 1872. For all other Agreements, execution through any reputable electronic signature platform is sufficient, provided the resulting audit trail, including signer identity, IP address, and timestamp, is exported and retained by [Party] for the Agreement's record-retention period, independent of whether the signing account remains active. This clause does not apply to any document that, under the First Schedule to the Information Technology Act, 2000, requires physical execution. Nothing in this clause affects either party's obligation to pay applicable stamp duty."

What changed and why: it names the actual secure-signature methods instead of a vague "any free tool," ties the choice to value or dispute risk, requires the audit trail to be exported so it survives a lapsed free account, carves out First Schedule documents, and states plainly that stamping is a separate obligation.

How this interacts with related pages

The signature method is one of three separate questions that get conflated in practice: is the signature legally recognised, is the document one that can be e-signed at all, and has stamp duty been paid. Read this alongside are electronic signatures legally valid in India for the full statutory framework, and Aadhaar eSign vs DSC vs click-to-sign for a deeper comparison of the two secure methods against each other, including cost, identity assurance, and where each is mandatory versus merely sufficient.

US and global contrast

The four vendors compared here were built primarily for a US market, where the federal ESIGN Act and the state-level Uniform Electronic Transactions Act treat a reliable click-signature with a decent audit trail as generally sufficient, and there is no separate government-certified "secure" tier carrying its own automatic court presumption. That is why each platform's default free-tier signature is a plain click-signature: it is legally adequate at home. India runs a two-tier system instead: a click-signature that is valid but unpresumed under Section 10A, and a narrower Section 3A "secure" signature, DSC or Aadhaar eSign, carrying the Section 85B presumption. None of the four vendors' free tiers reach that second tier for an Indian signer by default; the country's own free Aadhaar eSign route does.

FAQ

Is there a genuinely free way to legally e-sign a contract in India? Yes. Aadhaar eSign through DigiLocker is free for individual use and, done correctly, produces a Section 3A "secure electronic signature" carrying the Section 85B court presumption, something none of DocuSign's, Adobe's, Zoho Sign's, or Dropbox Sign's free tiers give an Indian signer by default.

Which free e-signature tool gives the strongest legal protection in India? Aadhaar eSign, not a vendor's free plan. A DocuSign, Adobe, Zoho Sign, or Dropbox Sign click-signature, free tier or paid, forms a valid contract under Section 10A but does not carry the Section 85B presumption. Aadhaar eSign and a DSC both do.

Does Zoho Sign's free plan support Aadhaar eSign for India? Not on the free plan. Aadhaar eSign is offered as a paid India-specific add-on on Zoho Sign's higher tiers, not included in the free 5-documents-a-month plan.

Is a free-tier click-signature from any of these vendors legally valid in India? Yes, it forms a valid, enforceable contract under Section 10A of the IT Act. It is not, by default, a Section 3A "secure electronic signature," so if the signature is later disputed, you carry the burden of proving it, using the platform's audit trail, rather than getting an automatic court presumption.

Can I use a free e-sign tool for a power of attorney or property sale agreement? No. These are First Schedule documents under the IT Act, and the Act does not apply to them at all. No e-signature method, free or paid, validly executes them; they need a wet-ink signature.

Does using a free e-signature tool remove the need to pay stamp duty? No. Stamp duty attaches to the instrument itself under the Indian Stamp Act, 1899 and the applicable state Stamp Act, regardless of which signing method, free or paid, was used.

This guide gets you to a correct, specific understanding of what each free or low-cost signing route actually gives you under Indian law, and which one is worth the extra step for a given deal. It does not tell you whether a particular method is adequate for your specific contract, counterparty, or risk tolerance, that depends on facts this page cannot see, and is not legal advice. Talk to a lawyer before finalising a signing policy for a high-value or high-risk agreement.