Sign PDFs online for free

Draw your signature or upload an image and stamp it on your PDF in seconds, with nothing to install and no sign-up.

It is free, safe and private: we ask for no personal data and there are no hidden fees. Everything is processed in your browser; neither your signature nor your documents ever leave your device.

Many of our clients and friends end up paying subscriptions just to sign a quote, a contract or an authorisation, when stamping a signature on a PDF is something your own browser can do for free; that is why we built this tool.

It is worth pausing to think about what exactly gets uploaded when you sign on certain websites: the document and your signature, both of them, sit for a while on someone else's server, under terms hardly anyone reads. And your signature is one of those things that should circulate as little as possible. Here there is no fine print to squint at because there is no upload: the PDF is signed on your device and we never get to see the document or the signature. If you also need to merge, compress, split or number documents, try our free PDF tools.

Keep in mind this is a handwritten signature stamped onto the document, not a qualified electronic signature backed by a digital certificate. It works fine for everyday paperwork: quotes, delivery notes, authorisations, minutes or agreements between parties that know and trust each other. If you need stronger legal standing (for example, official government procedures), use a digital certificate or a qualified signature service.