Sign a PDF online, free
Add a simple electronic signature mark to a PDF — draw it with your mouse or finger, or upload a signature image. Everything happens on your device.
Files are processed locally in your browser and are not uploaded to a server. No account, no watermark, no tracking.
How to use it
- Open the editor and choose a PDF.
- Click Signature to draw, or upload a signature image.
- Drag and resize the signature where you want it.
- Download your signed PDF.
Good to know
- LocalSign places a simple electronic signature mark only.
- It does not verify identity or certify documents.
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.