The easy-to-use electronic signature

Collect signatures in a simple and seamless way.
Save time, paper and money, all of these with legal validity.

Collect signatures in a simple and seamless way. Save time, paper and money, all of these with legal validity.

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🎉 More than 5 million users have signed with ZapSign!

— Rafael Dantas, Accountant

— Driely, Sales consultant

— Sidnei Dias, SPD Lawfirm

Perfect for anyone using messaging apps

It's very simple

Clients access your link.

And sign with their finger.

ZapSign has the best electronic signature experience using your smartphone

Compatible with WhatsApp, email, SMS, Telegram or any other communication channel.
92% of documents are signed in less than 1 hour.
No need for printers and couriers.

Where your needs and ZapSign meet

Position signatures and approvals on the document

You can collect signatures, visas, and fill-in fields from signatories in the body of the document. Collect relevant information or signatures.

Share on WhatsApp or Email

Do you talk to your customers via WhatsApp or email? Whatever it is, share the subscription link wherever the conversation is!

Create reusable forms and templates

Does your company have standardized contracts? Create a form to be filled to be filled in by the salesperson or customer, and your contract will be automatically generated.

Customize your colors and branding

Show your customers how modern and digital your company is, customizing the signature experience with your colors and branding.

Sign with selfie and facial recognition

Want even more security for your documents? Ask the signer to take a selfie, ID photo, or record a video while signing!

Integrate with your systems

Integrate ZapSign with your Google Drive, CRM and systems with our integrations. We also have an API for any use case.

You are in good company

+100,000 companies already trust us. Meet some of our customers.

Legally binding electronic signature

The electronic signature has legal validity in practically every country and regions in the world, for instance US, EU and Latin America.

ZapSign captures various signer authentication data in addition to the on-screen signature, such as the signer's IP, date and time, phone, email, unique code and device, browser, and operating system information. In addition, the integrity of the document is ensured by the SHA256 algorithm, a cryptographic hash function created by the NSA, which identifies if any type of change is made to the original document, in addition to the final document being digitally certified by ZapSign with an A1 ICP certificate.

The electronic signature of online documents can be used in practically all private documents such as contracts, powers of attorney (common and judicial), proposals, agreements, loans and registrations, among others.

How it works

1. Upload the document

You upload the PDF document for electronic signature.
2. Share the link

By WhatsApp, SMS, email or any other channel that your customer prefers.
3. Wait for the signature

You will be notified by email when the person signs the document.