Printing, signing and re-scanning a page just to send it back is slow. With Sign PDF you can draw your signature with a mouse or finger, type your name in a handwriting-style font, or upload a photo of your signature, then place it exactly where it belongs and resize it to fit the line.
This creates a visual electronic signature: an image of your signature added to the page. It's widely used for everyday agreements, forms and internal approvals. It is not a certificate-based digital signature, which cryptographically proves who signed and detects later changes; some legal or regulated processes require that, so check what your recipient accepts.
Signing happens entirely in your browser, so neither your document nor your signature is uploaded. To make the signature harder to move or remove, run the signed file through Flatten PDF.
How to Sign PDF
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1
Open the PDF
Load the document you need to sign.
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2
Create your signature
Draw it, type it, or upload an image of it.
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3
Place it
Drag the signature to the right spot on any page and resize it.
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4
Download
Save the signed PDF.
Features
Three ways to sign
Draw with a mouse, trackpad or finger; type your name; or upload a signature image.
Precise placement
Move and resize the signature on any page, and add it to several pages if needed.
Your signature stays private
Neither the document nor the signature leaves your device.
Good to know
- This is a visual signature, not a certificate-based digital signature, and it does not prove identity cryptographically.
- Some legal, financial or government processes require qualified or certificate-based signatures.
Frequently asked questions
Is an electronic signature legally valid?
In many countries simple electronic signatures are accepted for everyday agreements, but rules vary by jurisdiction and document type. For contracts with specific legal requirements, check with the recipient or a legal adviser.
Is this a digital signature with a certificate?
No. Sign PDF places an image of your signature on the page. It doesn't add a cryptographic certificate that verifies identity or detects later edits.
Can I sign on my phone?
Yes. You can draw your signature with your finger on a touchscreen.
Is my signature stored anywhere?
No. Your signature and the document are processed in your browser and are not uploaded to our servers.
How can I stop someone from moving my signature?
Run the signed document through Flatten PDF so the signature becomes part of the page content. For stronger protection, also use Protect PDF.