Frequently Asked Questions

eSign is the abbreviation of electronic signature. eSign facilitates a person to electronically sign a document using their email ID and phone number. ZoopSign is an eSign Application Service Provider (ASP) that allows people to sign documents electronically by triggering an OTP sent to the signer’s email ID and phone number.

Aadhar eSignature is a digital signature that uses just your Aadhar number mobile number as an identity verification method. This allows you to sign documents online without any physical signatures! This has been designated as a valid mode of electronic signature under Schedule II of the Information Technology Act, 2000.


Multiple banks, NBFCs, insurance companies, MNCs, government agencies, and even the Supreme Court in India today use Aadhaar eSign to replace physical signatures in their daily contract management needs.

An Electronic Signature is a digital form of a wet link signature. Although it is legally binding and secure, it does not comprise any coding or related standards for verification.


On the other hand, a Digital Signature uses encryption standards to verify the signer's identity. As a result, it is more secure than an electronic signature and is globally accepted as a legally binding form of signature. Furthermore, the validation of digital signatures is usually authorised because it is carried out by trusted certificate authorities or trust service providers.

The IT Act considers digital signatures such as Aadhaar-based e-Sign to be as legally valid as physical signatures. Therefore, they are also 100% admissible in court!

As soon as you create a ZoopSign account, you can start signing documents, requesting signatures, and securely storing your documents using our web application

There are many advantages of using e-signatures over traditional wet ink signatures:

  • E-signatures are legally binding and compliant with global standards.
  • E-signatures are more secure than wet ink signatures as they use encryption to verify the signer's identity.
  • Digital signatures can be used to sign documents online without needing physical presence.
  • E-signatures are more efficient as they can be used to sign multiple documents simultaneously.
  • Reduces operational costs, saves time, and promotes better workflow and business efficiency.
  • e-Signs are linked to an individual's identity, removing the possibility of tampering or fraud.

Using e-Sign, an individual authorized by the organisation can digitally sign documents. To be authorized for this purpose, the organisation's board of directors must pass a resolution authorizing the individual to sign documents on its behalf. This resolution must be documented, and the authorized person must agree to sign documents on the organisation's behalf.

Yes. Aadhaar eSign is a prescribed and completely legally compliant type of electronic signature under law and thus all agreements executed with Aadhaar eSign are completely legally acceptable and enjoy a high degree of legal enforceability.  You can pay stamp duty online via an electronic secured bank treasury receipt (eSBTR)-an online payment service.

ZoopSign can assist your organisation in going paperless from top to bottom! You can also save money and time on operational expenses with intuitive features such as onboarding new customers with 100% digital workflows, verifying the identities of digital signers, and contract management at scale!

You can self-sign on your Android device easily, even if there are multiple signees on the same document! Just add your email address to the list of signers and you will be included in the signature flow.

The following organisations may use ZoopSign for electronic signatures:

  • Anyone who has an Aadhaar number linked to a valid mobile number or verified through a biometric device.
  • Any individual or organisation that possesses a Digital Signature Certificate.
  • Any individual or organisation that possesses a Document Signer Certificate.

Any electronic signature used on any of the documents listed below will not make such a signature or the document itself valid.

Under Section 1(4) of the IT Act, 2000, electronic signatures or the IT Act itself is not applicable to:

  • Any class of documents as stipulated by the Central Government by way of a notification published in the Official Gazette from time to time.
  • Any sale of immovable property in India or any contract, interest or conveyance in such property.
  • Power of Attorney as per Section 1A of the Powers of Attorney Act, 1882.
  • A will and/or testament as per Section 2(h) of the Indian Succession Act, 1925.
  • A negotiable instrument as per Section 13 of the Negotiable Instruments Act, 1881.
  • A trust as per Section 3 of the Indian Trusts Act, 1882.

Any negotiable instrument, A Power-of-Attorney, A trust, A will, Any contract for the sale or conveyance of immovable property or any interest in such property, Any such class of documents or transactions as may be notified by the Central Government in the Official Gazette

The Indian government introduced e-stamping to tackle counterfeiting and make the payment of stamp duty easier and glitch free. In fact, in certain states, such as Delhi, all stamp duty needs to be paid through e-stamping.  You can pay stamp duty online via an electronic secured bank treasury receipt (eSBTR)-an online payment service.

  • The signature certificate associated with your Aadhaar e-Sign is only valid for 30 minutes. The private key is then destroyed to prevent any misuse. However, this doesn’t mean that the transaction you agreed to while signing is invalid. This ensures more security while digitally signing documents.

  • Revocation of certificate is not required as the certificate validity is only 30 minutes, and the private key is deleted immediately after the signature is created.

Certifying Authorities (also known as Certificate Authorities in other regions) are third-party organisations trusted to issue electronic signature certificates. In India, Certifying Authorities are granted a licence to issue electronic signature certificates under Section 24 of the IT Act, 2000. For Aadhaar eSign, the Certifying Authority provides the electronic signature certificate on the basis of a real-time Aadhaar authentication facilitated by the eSign Service Provider. The eSign Service Provider and the Certifying Authority are owned and operated by the same entity.

Absolutely not. Your files are only yours. While your files are on our servers, they are strictly secured and no one can access them. We just keep them for a maximum of 2 hours so you can download them. Right after, they are completely removed forever from our servers. You can also delete the document by yourself at the end of each conversion. We won’t check, copy or analyze your files in any way.

Yes. All uploads use https/SSL and include our end-to-end encryption for further privacy. These additional steps increase security and satisfy most corporate data privacy policies.

In case of any queries related to our features, pricing, sales, APIs, SDKs, and more, please feel free to contact us at for assistance.

ZoopSign PDF utilities provide you with functions like eSign a document, merging a PDF file, and many more. There are all the utilities zoopsign provides:

Esign Pdf

Merge PDF

Split PDF

Lock PDF

Unlock PDF

Delete PDF

Arrange PDF

Image to PDF

Compress PDF

Doc to PDF

The PDF eSign tool offers an intuitive signing experience for all your documents. There are 3 different ways to sign your PDF. It offers:

Aadhaar-based eSign, Type signature as text and Draw signature  Here