The Basic Audit-Trail PDF Signer is a client-side browser tool that lets users add a visible signature and an automatic audit trail (timestamp + IP approximation + simple hash) to PDF documents — all processed locally without any server upload or third-party dependency after the page loads. It is ideal for freelancers, consultants, remote workers, and small business owners in Pakistan who need to create traceable records of approvals, receipts, delivery confirmations, milestone sign-offs, or informal agreements where basic proof of when and by whom a document was signed is valuable (e.g. client disputes, internal audits, handover documentation).
Upload your PDF and transparent PNG signature. The tool renders the first page for placement. Drag the signature to the desired position. An audit trail overlay is automatically generated with current Pakistan time, approximate public IP (via client-side lookup), and SHA-256 hash of the message “Signed by [name] on [time]”. The trail appears as small visible text below the signature. Click "Download Signed PDF with Audit Trail" to export a new PDF with both signature and audit trail embedded as image/text layers — preserving original quality and opening correctly in any viewer. The result provides a simple, human-readable trail that can be verified later by re-hashing the text portion.
All operations (rendering, signing, hashing) happen 100% in your browser using PDF.js and jsPDF — no files leave your device, no data is sent anywhere, ensuring maximum privacy for sensitive business or client documents. The tool works offline after initial load (CDN libraries cache locally), supports mobile devices with touch-drag, and is perfect for signing while traveling or during internet/power issues common in Pakistan. The IP is approximate (ISP/VPN exit) and included only for reference — not for legal proof.
Use it daily to sign PDFs with both signature and basic audit trail, increase trust with clients, create lightweight verifiable records, and maintain professional workflows — free, secure, private, and fully offline-capable in your browser. (Word count ≈ 302)