Draw, type or upload
Create your signature the way you like — draw it freehand, type your name in a signature font, or upload an image of your real signature.
Sign PDF
Add your signature to any PDF — draw, type or upload it, then place it.
or drop a file here
Files are processed in your browser and never uploaded.
Sign PDF online — free and private
Sign PDF lets you add your signature to a document without printing, scanning or installing anything. Draw your signature with a mouse or finger, type your name in a handwriting-style font, or upload a photo of your signature — then drag it onto the page, resize it, and download the signed PDF.
Every step happens inside your browser, so the contract, agreement or form you are signing is never uploaded to a server. That makes PDF10x a safe way to sign sensitive paperwork. Need to fill in text fields or dates too? Combine it with Watermark PDF and other tools — your file stays on your device throughout.
Also known as: sign pdf · esign pdf · sign pdf online · add signature to pdf · electronic signature pdf · e signature pdf · fill and sign pdf · digital signature pdf · sign document online
Why use PDF10x to sign pdf?
Place it exactly
Drag your signature to the right spot on any page and resize it to fit the signature line. Add it to more than one page if you need to.
Private and legally simple
Signing happens entirely on your device — your document is never uploaded. You get a flattened, signed PDF that opens the same everywhere.
How to sign pdf online
- 1
Select or drop the PDF you want to sign.
- 2
Create your signature — draw it, type it, or upload an image.
- 3
Drag the signature onto the page and resize it to fit; repeat on any other pages.
- 4
Click “Sign PDF”, then download your signed document.
Frequently asked questions
Is signing a PDF here legally valid?
For most everyday agreements, a clear signature image placed on the document is widely accepted. For contracts that require a qualified or certified digital signature, use a dedicated e-signature service. PDF10x adds a visible signature, which covers the vast majority of forms and agreements.
Is my document uploaded when I sign it?
No. Your PDF and your signature are processed entirely in your browser. Nothing is uploaded to a server, so sensitive contracts and forms never leave your device.
Can I sign more than one page?
Yes. Place your signature on any page, and add it to as many pages as you need — for example an initials line on every page plus a full signature at the end.
Can I reuse the same signature next time?
Each session starts fresh for privacy, so nothing is stored between visits. If you upload an image of your signature, keep that image file and you can reuse it any time.