# Add Your Signature

> Free online tool to sign PDFs entirely in the browser. Users draw or upload a signature, place it on any page of a PDF, and download the signed file. The PDF is never uploaded to a server.

## What it is
- A free, no-account web app at https://addyoursignature.com
- Runs 100% client-side using pdf-lib and pdfjs-dist
- Embeds a visual signature into the PDF (not a cryptographic e-signature like PAdES or X.509)

## How it works
1. Drop a PDF file onto the page (or tap to choose one).
2. Draw a signature with mouse, trackpad, or finger, or upload a transparent PNG.
3. Place the signature on any page by tapping or clicking.
4. Download the signed PDF.

## Who it's for
- Anyone who needs to sign a PDF quickly without creating an account
- People who do not want to upload private documents (contracts, NDAs, quotes, invoices, tax forms) to a third-party server
- Tradespeople, freelancers, and small businesses signing client paperwork
- Users on mobile or desktop, no install required

## Privacy
The document never leaves the user's device. There is no server-side processing of the file. Vercel Analytics is used for anonymous page-level traffic only.

## Links
- Site: https://addyoursignature.com
- Sitemap: https://addyoursignature.com/sitemap.xml