How to Sign a PDF Without Uploading It
Signing a contract shouldn't mean uploading it to a stranger's server. Whether it's a rental agreement, an NDA or an offer letter, here's how to sign a PDF while keeping the document entirely on your own device.
Why 'no upload' matters for contracts
Contracts contain names, addresses, financial terms and signatures — exactly the data you don't want sitting on a third-party server or retained in someone's logs. A client-side signer opens, edits and re-saves the PDF in your browser, so the document never leaves your device.
Sign your PDF in 3 steps
- 1Open the Sign PDF tool and add your PDF.
- 2Create your signature: draw it with a mouse or finger, type your name in a handwriting style, or upload a photo/scan of your real signature (a transparent PNG works best).
- 3Drag the signature onto the right spot, resize it, add the date if needed, then export the signed PDF.
Is an electronic signature valid?
In many countries electronic signatures are legally recognised for everyday agreements, though requirements vary by jurisdiction and document type — check the rules that apply to anything high-stakes. Whatever you sign here stays on your device and is never uploaded.