ESign PDF

Open a PDF to sign

Add text, draw signatures, highlight certificates, and stamp notes with 100% in-browser privacy.

✍️ E-Signatures🔤 Add & Edit Text🖍️ Highlight📑 Reorder Pages

100% in-browser · Zero server uploads

Technical Overview & Architecture

How to Sign PDF Documents Online Free

Draw, type, or upload transparent electronic signatures onto legal agreements and government forms.

Adding a clean handwritten signature to digital documents is a frequent requirement for Indian government services, rental agreements, employment contracts, and university submissions. Easy to Doc's Sign PDF utility allows you to place crisp, transparent electronic signatures on any PDF page within seconds without needing a printer, scanner, or costly subscription software.

Our signing utility offers three intuitive input modes: draw directly using your touchscreen, mouse, or stylus with pressure-sensitive stroke smoothing; type your legal name to generate an authentic cursive signature in various calligraphic styles; or upload an existing photo of your signature with automatic background transparency removal.

All signature rendering and PDF byte injection happen entirely inside your web browser. Your private signature image is never transmitted over the internet, preventing identity theft and unauthorized document tampering. Once positioned, the signature is permanently merged into the PDF document stream.

Client-Side Privacy Architecture

Your files never leave your device. All operations are processed locally in your browser memory via WebAssembly and HTML5 Canvas with zero server file storage.

Step-by-Step Instructions

How to Use Sign PDF Online

1

Select PDF File

Drag and drop the document you need to sign into the browser workspace.

2

Create Signature

Draw with mouse/touch, type your name in cursive script, or upload a photo of your signature.

3

Position & Scale

Drag the signature box onto the designated signature line, resize as needed, and duplicate across pages.

4

Save Signed PDF

Export your signed, ready-to-submit document instantly with zero watermarks.

Real-World Applications

Practical Use Cases

Self-Attestation for Gov Portals

Government

Sign photocopies of Aadhaar, PAN, and marksheets for passport, driving licence, and exam uploads.

Employment Onboarding

HR

Sign offer letters, NDA agreements, non-compete clauses, and HR declaration forms.

Rental & Lease Deeds

Property

Sign tenant verification agreements, maintenance undertakings, and NOC applications.

Tax & Financial Returns

Banking

Endorse ITR acknowledgement forms, bank loan applications, and insurance claims.

Engine Specifications

Supported Formats & Standards

Signature ModesDraw (Canvas), Type (Cursive Fonts), Upload (PNG/JPG)
Background HandlingAutomatic background removal & transparent alpha channel
File ConstraintsStandard PDF files up to 100 MB
Data Security100% Client-Side In-Memory Processing
Legal TypeVisible Electronic Signature (Non-Cryptographic DSC)
Frequently Asked Questions

Sign PDF FAQs

Common questions about technical standards, compliance, and browser privacy.

Under the Information Technology Act, 2000, electronic signatures are recognized for general declarations, self-attestations, corporate acknowledgements, and many routine service applications. However, acceptance depends on the receiving organization, and formal instruments (such as wills, powers of attorney, or real estate conveyances) require execution on non-judicial stamp paper, notarization, or Class 3 digital signature certificates (DSC). Always check the receiving authority's specific signature requirements.