ProofVault
eSignature

Electronic signatures with a chain of custody.

ProofVault collects legally meaningful signature evidence — identity, timing, network and device — then seals the result so any later change is detectable.

Start signing freeSee all features

Draw, type or upload

Signers sign on an HTML5 canvas with mouse, finger or stylus, or type a stylised signature — no plugins.

Multi-party workflows

Route to signers, approvers and CC recipients in parallel, or enforce a strict signing sequence.

Drag-and-drop fields

Place signature, full name, date signed, text and checkbox tags anywhere on the page.

QR verification

Every finalised PDF carries a scannable code that resolves to a public verification page.

Evidence you can defend

Signer name, email, UTC timestamp, IP address and user-agent stored against an immutable audit trail.

Hash-locked vault

Completed documents are SHA-256 hash-locked in encrypted storage only you can read.

Start free. Unlock everything for £5 a month.

Free gives you document signing and secure file transfer with the full audit trail. Solo is £5 / month (£4 billed annually) and opens up forms, invoices, returns portals and the nine-tool PDF suite, plus unlimited documents, QR verification and bigger transfers. Business Team adds sequential multi-party routing and seats.

MonthlyAnnual Save 20%

Free Forever

Essential signing and secure file transfer for light or casual use.

£0 / forever
What's Included & Limits
  • Limit: Up to 3 documents / month
  • In-house interactive canvas signatures
  • Basic tags (Signature & Date only)
  • File transfer: 3 active links, 200 MB each, up to 7-day expiry
  • Forms: published forms with basic question types
  • PDF tools: merge, split, compress, protect, rotate, delete pages
  • Invoices, receipts and packing slips
  • Self-serve RMA returns portal
  • On-Document QR Code Verification
  • Multi-Party Sequential Signing
Best Value

ProofVault Solo

Unlimited documents plus forms, invoicing, returns portals and the full PDF toolkit.

£5 / month
Everything in Free, plus:
  • UNLIMITED documents & storage
  • On-Document QR Code Verification
  • Full Dynamic Tagging: Custom fields, checkboxes, text inputs
  • Unlimited file transfers: 2 GB per link, expiry up to 30 days, full download logs
  • Unlimited forms with dropdowns, long text and file-style questions
  • Core PDF tools: merge, split, compress, protect, rotate, delete pages
  • Advanced PDF tools: watermark, page numbering, images to PDF
  • Unlimited invoices in GBP, USD or EUR with receipts and packing slips
  • Unlimited returns portals with RMA codes and status tracking
  • Multi-Party Sequential Order Routing

Business Team

Full suite for corporate, school and multi-signer workflows.

£8.99 / user / mo
Everything in Solo, plus:
  • Priority email support — replies within 4 hours on business days
  • Sequential Multi-Party Routing: Set Signer A → Signer B order
  • Multi-role permissions (Signer, Approver, CC)
  • Shared team workspace & reusable templates
  • File transfer: 5 GB per link, expiry up to 90 days
  • Education pack: consent forms, enrolment packs and whole-team policy sign-off
  • eCommerce pack: order invoices, packing slips, RMA returns and supplier agreements