Sign a PDF With Your Handwritten Signature
Add your signature to a PDF without printing or scanning. Draw it with a mouse, trackpad or finger, type it in a handwriting font, or upload a picture of it, then drag it onto any page and resize it to fit. The document is signed in your browser and never leaves your device.
Your file is processed by your own browser and never uploaded. Most online tools send your document to their servers and delete it later — this one never receives it at all.
Why use Sign PDF
- Draw with a mouse, trackpad, stylus or finger, with undo
- Type your name in a handwriting font, or upload a signature image
- Drag and resize the signature right on the page
- Place it on any number of pages, with an optional date
- Transparent signature, with no white box over your document
- Signed locally; the PDF is never uploaded
Popular uses
- Sign an offer letter, lease or NDA and send it back the same day
- Sign school permission slips and forms from your phone
- Approve invoices and purchase orders without printing
Sign PDF: frequently asked questions
How do I sign a PDF without Adobe?
Open the PDF in PDFSpark's Sign PDF tool, draw, type or upload your signature, tap the page where it goes, and download the signed file. The signature is added in your browser, so there's no software to install and no upload. Sign PDF is included with PDFSpark Pro.
What's the difference between an electronic signature and a digital signature?
An electronic signature is any mark that shows your intent to sign, like a drawn or typed signature on a PDF. A digital signature is a cryptographic, certificate-based seal that proves who signed and detects later changes. PDFSpark adds an electronic signature; it doesn't apply certificate-based digital signatures.
Is a signature added this way legally binding?
Electronic signatures are widely accepted for many everyday documents, but whether one is valid depends on the document type, the jurisdiction and what the other party requires. Some agreements, government forms and regulated industries demand certificate-based or witnessed signatures. If in doubt, ask the recipient or a legal adviser before relying on a drawn signature.
How do I sign a PDF on iPhone or Android?
Open PDFSpark in your mobile browser, choose the PDF from Files, and draw your signature with your finger or type it. Tap the page where it should go, drag it into place, then download the signed file. There's no app to install, and the document stays on your phone the whole time.
How do I place my signature in the right spot?
Tap the spot on the page and the signature appears there. Drag it to fine-tune the position and pull a corner handle to resize it; use the page arrows to add it to other pages. What you see on screen is where it lands in the downloaded PDF.
Is it safe to sign documents online?
Signing with PDFSpark keeps both the document and your signature on your device, because everything runs in the browser. Many e-signature services store your files and signature on their servers. We never receive them, which reduces the risk of your signature image or contract being exposed in someone else's data breach.