Sign a PDF Online
Sign a PDF online: draw your signature or upload a signature image, place it exactly on the page, download.
How to use Sign PDF
Draw your signature on the pad — mouse, finger or stylus — or upload a photo of it, then click where it belongs on the page preview, fine-tune the size, and export. Because everything stays on your device, this is the rare e-sign flow you can safely use on contracts you'd never upload to a third-party service.
- Drop your file into the box above, or click it to browse. You can also paste from the clipboard.
- Adjust the options to taste — the defaults are sensible for most cases.
- Press Place & sign and watch the progress bar; everything runs on your device.
- Download your result — individually, or as a ZIP when there are several files.
Like every tool on ImageCompressorKits, this runs 100% in your browser: your file is never uploaded to any server, which makes it safe to use even with private documents — and it keeps working if you go offline after the page loads.
Frequently asked questions
Is this a legally binding signature?
This places a signature image, the electronic equivalent of signing a printout — widely accepted for everyday agreements. It is not a cryptographic digital certificate; for those, use a certificate-based service your counterparty specifies.
Can I sign in more than one place?
Place, export, and run the signed file through again for each additional spot — each pass is lossless. Multi-placement in one pass is planned.
Is this tool really free?
Yes — completely free, with no signup, no watermark, and no file limits beyond what your device's memory can handle.
Are my files private?
Yes. Processing happens locally in your browser via JavaScript; nothing is transmitted or stored. See our privacy policy for the full picture.