Free PDF Signer

Use LocalSign as a free PDF signer for adding a signature mark to a PDF. The editor works in your browser and keeps your PDF on your device.

You can draw a signature, upload a signature image, add a date, or place short text before downloading the PDF.

LocalSign is designed for privacy-first editing. It adds signatures to PDFs as visual marks and does not certify or validate documents.

Files are processed locally in your browser and are not uploaded to a server. No account, no watermark, no tracking.

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How to use it

Open LocalSign.
Select a PDF file.
Draw or upload your signature mark.
Position it on the PDF and download the result.

Features

Browser-only PDF signer.
Drawn and uploaded signature support.
Text, date, and image tools.
No upload to a server.

Good to know

Does not provide verified signatures.
Does not guarantee acceptance of any document.
Precise placement is easiest on desktop.

FAQ

What does a free PDF signer do?

It lets you add a signature mark to a PDF and download the updated file.

Does the PDF leave my computer?

No. Your PDF stays in your browser on your device.

Can I use a signature image?

Yes. Upload a PNG or JPG signature image and place it on the page.

Privacy & honesty

Your documents stay on your device — LocalSign has no servers that receive your files. Signatures, stamps, highlights, shapes, and other annotations are visual changes created by you. LocalSign does not verify, certify, notarize, or legally validate documents.

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