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In the field guide

supersign

supersign.com.br

SuperSign Assinatura Digital is a 100% Brazilian digital signature platform that offers secure, fast document signing with legal validity and human support. It integrates Google Cloud technologies and complies with Brazilian legislation including LGPD and ICP-Brasil standards.

The product, beyond the pitch

Editorially reviewed · Sources checked Sep 17, 2026

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A good fit for

  • Operations requiring legally valid digital signatures in Brazil, such as human resources, commercial contracts, and personnel departments.
  • Users needing a platform with human support and simple, fast document signing processes.

Know the limitations

  • The platform is designed specifically for the Brazilian market and legislation, which may limit use outside Brazil.

What you can do

  • Digital signing for healthcare and clinics requiring continuity, control, and centralized management of terms and administrative documents.
  • Legal professionals across Brazil use the platform for its simplicity, speed, and legal security in digital document signing.

Features

  • Integration with Google Cloud technologies for secure document storage and signing.
  • Use of SHA256 encryption for document security.
  • Compliance with Brazilian legislation including LGPD and ICP-Brasil for legal validity and data protection.
  • Public API (REST v4) with documentation in Portuguese, supporting envelope creation, configuration, sending, and tracking.
  • Webhooks support for event tracking and idempotency to avoid duplicate operations.

Integrations

  • API and webhooks allow integration with other systems for envelope management and event tracking.

Platforms & data export

  • Web-based platform with sending and signing via email, WhatsApp, or SMS without requiring an app or card.

supersign pricing

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THE COST FOR YOUR TEAM

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Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.

Known monthly subtotal

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1 of 1 tools could not be priced with these inputs, so this is not the full cost.

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A practical workflow

  1. Create reusable templates for frequent envelopes to reuse configurations.
  2. Add necessary fields and forms for each participant to fill or sign their part of the document.
  3. Configure reminders for signatories and choose how the team receives updates.

Based on the sources below. Editorial review does not imply hands-on product testing.

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What changed

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Sources & research

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