Sign PDFs Instantly & Securely
The easiest way to sign documents directly in your browser. Free forever. No uploads, no sign-ups, no server storage. Your data never leaves your device.
Drop your PDF here
or click to browse files
Upload Document
Drag and drop your PDF file. It opens instantly in your browser without uploading to any server.
Create & Place Signature
Draw your signature or upload an image. Click anywhere on the document to place it perfectly.
Download Securely
Get your signed document instantly. The signing process happens entirely on your device.
Why is this secure?
Unlike other tools, we don't store your files. This application runs entirely in your browser using WebAssembly technology. Your sensitive documents never touch our servers, ensuring 100% privacy and security.
Frequently Asked Questions
What is Signerra?
Signerra is a free, secure PDF tool that allows you to sign, merge, split, and add text to PDF documents directly in your browser. It's designed for simplicity and privacy.
Is it truly free?
Yes, Signerra is completely free to use. There are no hidden fees, subscriptions, or limits on the number of documents you can process.
Is my document secure?
Absolutely. Signerra uses WebAssembly to process your files locally on your device. Your documents never leave your browser and are never uploaded to any external server, ensuring 100% privacy.
Do you store my files?
No. Since all processing happens client-side in your browser, we have no access to your files, and they are never stored on our servers.