Sign in PDF online
LocalSign helps you sign in a PDF online by adding a visual signature mark. Your PDF stays in your browser while you add the signature, text, date, or image.
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 LocalSign editor.
- Select your PDF file.
- Add a signature mark and position it on the page.
- Download the updated PDF.
Good to know
- Adds signatures to PDFs as visual annotations.
- Does not provide verified, certified, notarized, or court-approved signatures.
- Acceptance of any edited document depends on your own requirements.
FAQ
Is this free?
Yes. LocalSign is free to use.
Do I need to create an account?
No. No account is required.
Does LocalSign claim legal validity?
No. It only adds signatures to PDFs as visual marks and does not guarantee legal validity.
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.