# Sign PDF Documents

> Not a PKCS7 cryptographic envelope with audit trail — this is a visual signature. Drawn strokes, typed text, or an imported PNG get composited onto the page as an annotation layer. Place multiple signatures and initials across a long contract. For court-admissible signing with certificate chains, use a dedicated e-signature service.


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).

## Tips

- **Signature image never uploads** — Drawn strokes, typed text, and imported signature PNGs are composited into the PDF in your browser. The signature stays on your machine, not on a vendor server.
- **Visual signature, not a certificate** — This adds a signature annotation, not a cryptographically signed PKCS7 envelope. For court-admissible signing with audit trails, use a dedicated e-signature service.
- **Place multiple signatures and initials** — Drop signatures and initials onto different pages — useful for multi-page contracts where each page needs an initial plus a final signature.

## 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