SignFile

SignFile is a modern e-signature platform built for teams that need to send PDFs for signature, track progress, and keep a tamper-evident audit trail — without giving an AI vendor the right to read every document you sign.

What you get: • Send a PDF for signature to one or many signers • Drag-and-drop placement of signature, initial, date, and text fields • Cryptographic PDF signing with a tamper-evident audit log • Workspaces with role-based access (admin / member / viewer) • Invites, email notifications, signing reminders • Magic-bytes PDF validation (no upload-time surprises) • Server-side field sanitization before signing • Multi-tenant document organization

What you don't get: • AI that reads your document text (geometry-only) • Per-document price gouging • Sales calls to get a quote • Vendor lock-in

Built on open foundations: Next.js 15, Appwrite, pdf-lib, Doppler. Your signature is yours — even our AI doesn't see it.