Sign PDF

Draw your signature, place it on the right page, resize it, and download a signed PDF without sending the document to a server.

Drag & drop a PDF file here
or
Signed PDF Ready
Features

Private by Default

The document and signature are processed locally in your browser.

Precise Placement

Preview every page, drag signatures, and resize them before saving.

Multiple Pages

Place signatures on one page or repeat them across a multi-page document.

Fast Download

Save a flattened PDF that opens in normal PDF readers.

Frequently Asked Questions

Does the file leave my computer?

No. The PDF is rendered and signed in your browser. It is not uploaded to LunacyDev or any third-party server.

Can I move the signature after placing it?

Yes. Click a placed signature, drag it to the correct spot, and use the corner handle to resize it.

Will this legally sign a contract?

This tool creates a visible signature on the PDF. Legal acceptance depends on your agreement, jurisdiction, and recipient requirements.