Sign PDF

Add legally binding digital signatures, draw your signature, or upload initials to contracts.

Supports: PDF (Max 50MB per file)

Step-by-Step Tutorial

How to Use Sign PDF in 3 Simple Steps

Follow this quick walkthrough to achieve maximum performance and flawless results.

Import contracts, agreements, NDAs, or tax forms requiring your authorized signature.

Supports multi-page documents with quick page navigation.

Use your mouse, trackpad, or touchscreen to draw a realistic cursive signature, or type your name.

You can reposition, resize, and place the signature anywhere on any page.

Burn your signature permanently into the PDF with cryptographic local rendering and download instantly.

Your signature never leaves your device — complete privacy guaranteed.

All operations run strictly on your device. Files never upload to remote servers.

High performance WebAssembly engines optimize files locally with instantaneous processing.

Clean, professional output with zero promotional marks, subscriptions, or file caps.

Reduce PDF file sizes with customizable compression presets while preserving document clarity.

Combine multiple PDF files into a single organized document with drag-and-drop page sorting.

Extract specific page ranges or split each page of a PDF document into individual files.