Can I sign on mobile devices and touchscreens?

Yes! The signature pad supports touch gestures, stylus input, and Apple Pencil on iOS Safari, Android, and tablets.

Does the signed PDF work in Adobe Acrobat and standard readers?

Yes. Signatures are permanently embedded into standard PDF vector layers compatible with all desktop and mobile readers.

Can I place multiple signatures across different pages?

Yes. You can switch between pages and place multiple signature stamps throughout your document.

100% Client-Side Privacy • Zero Server Uploads

Sign PDF Documents Online Free

Name: Sign PDF - Free Online PDF Tool
Availability: InStock
Rating: 4.9 (1450 reviews)
Author: PDFAtlas

Draw, type, or upload transparent e-signatures and stamps. Place and resize signatures interactively on any PDF page with 100% client-side privacy.

Drop your PDF file here

Processed locally in your browser for 100% privacy

100% Client-Side Privacy•Free & Unlimited•Up to 100MB

About Sign PDF with PDFAtlas

Signing contracts, NDAs, employment forms, and receipts should not require uploading sensitive personal documents to third-party cloud servers. PDFAtlas executes all signature operations directly inside your browser.

Use our smooth HTML5 signature canvas to draw your handwritten signature, type your name using elegant cursive fonts, or upload a company signature stamp. Drag and position your signature anywhere with real-time visual feedback.

100% Client-Side

Zero uploads. Your signature stays strictly in your browser.

Interactive Placement

Drag, reposition, and resize signatures on any page.

Draw, Type, or Upload

Draw freely, choose cursive styles, or upload PNG stamps.

How to Use Sign PDF

Follow three simple steps to complete your document task without installing software or creating an account.

Upload PDF Document

Drop your PDF file to load visual page previews in your browser.

Create or Upload Signature

Draw with your mouse/touchscreen, type cursive text, or upload a transparent PNG stamp.

Position & Download

Drag and resize your signature on the target page and download your signed PDF immediately.

Local Browser Privacy

Files are processed directly inside your browser. No files are uploaded or stored on remote servers.

Blazing Fast Execution

Zero network upload delays. PDF operations execute instantly using high-performance WebAssembly and JavaScript engines.

Works on Any Device

Fully optimized for desktop, tablet, and mobile browsers on Windows, macOS, iOS, and Android.

Frequently Asked Questions

Everything you need to know about using Sign PDF on PDFAtlas.

No. Everything is processed 100% locally in your browser tab. Your signature and PDF never touch an external server.