Sign PDF Document
Draw or place a signature image on any page of a PDF.
Nothing leaves your browserNo sign-upNo watermark
Select PDF document to sign, or drop it here
Modify PDF, place signature and initial pages offline privately.
Processed 100% locally
Signing runs entirely on your device. Your PDF pages and signature data are never uploaded.
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Frequently asked questions
How do I sign a PDF online for free?
Upload your PDF, draw or place your signature image on the page, position it, and download the signed PDF — all in your browser.
Can I draw my signature or upload an image?
Both. Draw it with your mouse or finger, or upload a transparent signature PNG and drop it onto the page.
Is signing a PDF here legally valid?
It adds a visible signature image, which is accepted for many everyday forms. For qualified e-signatures with certificates, use a dedicated e-sign service.
Is the PDF signer free and private?
Yes — free, no watermark, and your PDF and signature never leave your device.
How do I get a clean signature to place?
Use the transparent signature tool first to turn a scan into a clean, background-free PNG, then place it here.
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All on-device — nothing you open here is uploaded.