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DIGITAL SIGNATURE · DOCUMENTS · SAAS

SignFlow
Sign. Approve. Trace.

Electronic signature platform with full legal validity and traceability. Automated approval workflows, PDF signing with pdf-lib, HMAC-SHA256 webhooks and a document management panel.

Legal PDF signature

Sign PDF documents directly in the browser with pdf-lib. Embeds the signature in the document with traceability metadata.

Approval workflows

Configure multi-signature workflows with signer order, deadlines and automatic notifications.

HMAC-SHA256 webhooks

Receive real-time notifications in your systems with HMAC-SHA256 signing to verify authenticity.

Full traceability

Immutable record of every action: who signed, when, from which IP. Complete audit trail.

Multi-signer

A single document can require multiple signatures from different people. Control over order and requirement.

Mantine v7 panel

User interface built with React + Mantine v7. Smooth, professional experience.

TECH STACK
Node.js/ExpressPostgreSQLReactMantine v7pdf-libHMAC-SHA256CloudPanelNginxPM2