# Sign PDF Documents

> Add your signature to PDF documents. Draw, type, or pick a signature image and place it anywhere. Keeps original; downloads clean copy alongside.

Live tool: https://lofttools.com/tools/pdf-tools/sign-pdf

Category: PDF & Documents

## How it works

1. **Select PDF** — Drop the PDF you need to sign, or click to choose one
2. **Create signature** — Draw, type, or pick an image of your signature
3. **Place and download** — Position your signature on the page and download the signed PDF

## FAQ

### Is this a legally binding signature?

This tool adds a visual signature. For legally binding digital signatures with certificates, consider a dedicated e-signature service.

### Can I add multiple signatures?

Yes. You can place multiple signatures and initials on different pages of the document.

### Does this preserve bookmarks and form fields?

Yes. Existing bookmarks, form fields, and annotations are preserved. The signature is added as a new annotation layer (or a new form field, for digital signatures).

## Privacy — what we do not do

This tool runs entirely in the browser via WebAssembly. Your file never reaches a Loft Tools server. Specifically:

- **No upload.** The file bytes load into the browser tab's memory and process on your own CPU. Open DevTools → Network and observe zero outbound requests carrying file data while Sign PDF Documents runs.
- **No AI training on your file.** Loft does not train models. We could not train on a file we cannot see.
- **No content scanning.** No virus, copyright, or content-moderation pass against your file. The bytes are not accessible to us.
- **No server-side log of file contents, filenames, or EXIF metadata.** Cloudflare edge captures URL and truncated IP for abuse defense (standard CDN behaviour). Cloudflare Web Analytics records anonymous page hits, no cookies, no PII. Nothing about your file content reaches any log.
- **No retention.** Close the tab and the file leaves browser memory. No backups exist on our side because no copy ever existed on our side.
- **No account.** No email, no signup, no auth, no telemetry tied to you.
- **Offline-capable after first visit** (PWA). Once you've loaded a tool, it caches; later sessions work without internet. For high-sensitivity files, run the tool once online to warm the cache, then disconnect before processing.

Compare with upload-based services: each transmits your file to a processing server. Even over HTTPS, each has logs, retention windows, and subpoena exposure. Loft has none of these because the server architecture does not include your file.

## More

- All tools: https://lofttools.com/tools
- Category: https://lofttools.com/tools/pdf-tools
- LLM index: https://lofttools.com/llms.txt