Full-featured PDF editing with AI-powered font detection, legally binding eSignatures via Aadhaar, DSC & Virtual Sign — compliant with India's IT Act 2000.
Every feature you need to edit, sign, and manage documents — powered by AI and backed by Leegality's legal infrastructure.
Click anywhere on a PDF, and the AI instantly identifies the surrounding font family, size, weight, and colour — then auto-applies those exact properties to your new text.
Add and edit text, insert images, draw shapes, add stamps, watermarks, page numbers, headers and footers — all non-destructive until you save.
Draw with mouse or touch, type your name in 8 calligraphic fonts, or upload a scanned image of your handwritten signature.
The highest-validity digital signature in India. Aadhaar OTP or biometric authentication, powered by Leegality — fully IT Act 2000 compliant.
USB-dongle Digital Signature Certificates and Cloud DSC after one-time KYC — no hardware dongle required for Cloud DSC.
Send to multiple signers in any order. Sequential or parallel workflows, automatic email and SMS reminders, and real-time status tracking.
Every action timestamped, IP-logged, and geo-tagged. Download a full audit trail PDF that meets Indian evidentiary standards.
Share documents via expiring secure links. Password protection, download controls, and recipient tracking — no account needed to sign.
Windows, Mac, and Linux app with all web features plus offline editing, local AI font engine, and batch processing of up to 500 PDFs.
Highlight, strikethrough, underline. Add sticky notes, comment boxes, and approval stamps — all permanently embedded in the final PDF.
Combine multiple PDFs, extract specific pages, reorder by drag-and-drop, and reduce file size without visible quality loss.
One-time purchase. No monthly subscription. Buy a key, activate it, and use PTR Sign for a full year across all your devices.
PTR Sign is the only PDF platform built specifically for Indian legal requirements — combining full editing, AI font matching, Aadhaar eSign, and one-time key pricing in a single product.
| Feature | PTR Sign | Adobe Acrobat | DocuSign | DigiSigner | Smallpdf |
|---|---|---|---|---|---|
| AI Font Auto-Detection | |||||
| Aadhaar eSign (India) | |||||
| IT Act 2000 Legal Validity | Partial | ||||
| DSC / Cloud DSC | |||||
| Virtual Sign (OTP) | |||||
| Draw / Type / Upload Signature | |||||
| Full PDF Text Editing | Partial | ||||
| Multi-party Signing | |||||
| Audit Trail PDF | Partial | ||||
| Merge & Split PDFs | |||||
| Annotations & Markup | Partial | ||||
| Desktop App (Win/Mac/Linux) | |||||
| Priced in Indian Rupees (₹) | |||||
| One-time Key (No Subscription) | |||||
| Free Plan Available | Partial | ||||
| Batch PDF Processing | |||||
| API / Webhook |
Drag and drop any PDF. Our system instantly analyses the embedded font tables and prepares the document for editing.
Add text, annotations, signatures, stamps. AI auto-matches fonts in real time. All changes are non-destructive until you save.
Drag signature boxes to the exact position on any page. Assign each field to a specific signer and set the signing order.
Enter signer details and select sign type — Aadhaar, DSC, or Virtual OTP. Send with one click; Leegality handles authentication.
Signers receive a secure link via email or SMS. No PTR Sign account needed. They authenticate and sign in their browser.
Once all parties have signed, download the completed PDF with embedded certificates and a full court-admissible audit trail.
When you click anywhere in a PDF to add or edit text, PTR Sign automatically analyses the surrounding content — identifying the exact font family, size, weight, colour, and line spacing — then applies those exact properties to your new text.
From simple draw-to-sign to legally binding Aadhaar biometric — all signature types recognised under Indian law.
Highest legal validity. Aadhaar OTP or biometric authentication. Required for financial and government documents in India.
Digital Signature Certificate on USB dongle or Cloud DSC after KYC. Used for MCA filings, company resolutions, and contracts.
Email or mobile OTP-based identity verification. Fast and valid for most commercial agreements and HR documents.
Draw your signature with mouse, trackpad, or stylus. High-fidelity capture with smooth bezier curves.
Type your name and choose from 8 calligraphic signature styles. Fast and professional-looking.
Upload a scanned image of your wet-ink signature for an exact replica of your physical signature.
Every paid plan is activated with a one-time serial key — no monthly subscription, no credit card required for the free plan.
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Download PTR Sign Desktop for Windows, Mac, or Linux. All web features plus offline PDF editing, the full AI font detection engine running locally, and batch processing of hundreds of documents.
"The Aadhaar eSign integration is flawless. My clients sign loan agreements from their phones in under two minutes. The audit trail is court-admissible — exactly what legal practice requires."
"The font detection is uncanny. I edited a printed contract and not even my client noticed. DSC support works perfectly with my eMudhra USB token. Far better than Adobe at this price."
"We onboard 50 employees a month. PTR Sign handles offer letters, NDAs, and policy documents in one workflow. The serial key model made it simple to deploy across all branch offices."
Everything about PTR Sign, Leegality integration, and serial key licensing.
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