Sign PDF
Add a typed, drawn, or uploaded signature anywhere on the document.
shieldFiles stay on your device — processing runs in your browser.
- check_circleDraw, type, or upload your signature once and reuse it
- check_circlePlace initials and date fields with a click
- check_circleSignatures are flattened into the exported PDF
Sign PDF documents in your browser
Add a handwritten, typed, or uploaded signature to any PDF and place it exactly where you need it. LumosPDF flattens the signature into the exported file so it looks like a properly signed document. Because everything runs locally, your contracts and forms stay private and are never uploaded.
How to sign a PDF online
- 1Upload the PDF you need to sign using the area above.
- 2Create your signature by drawing it, typing it, or uploading an image of it.
- 3Drag the signature onto the page and resize it to fit; add a date or initials if needed.
- 4Export the signed PDF to download your finished document.
Frequently asked questions
Is signing a PDF here legally valid?
A drawn or typed signature placed on a PDF is widely accepted for everyday agreements. For signatures that require a certificate-based digital ID, use a dedicated e-signature provider.
Can I reuse my signature?
Yes. Once you create a signature you can place it multiple times in the document and reuse it whenever you sign.
Are my signed documents uploaded anywhere?
No. Signing happens entirely in your browser, so sensitive contracts never leave your computer.
Can I add the date and my initials too?
Yes. Along with your full signature you can place initials and a date field anywhere on the page.
Is it free to sign PDFs?
Yes, signing is free with no sign-in and no watermark on the exported file.