Guest-first, always
Generating a signature and signing a document work with zero friction — no sign-up wall, no email, no trial countdown. An account only exists for the moments you actually want one: saving signatures, history, sync.
PureSign · About
A signature is personal. So we keep it that way.
PureSign turns a photo of your handwritten signature into a clean, transparent PNG and lets you sign PDFs and images — all without an account and without your files ever leaving your device.
What we believe
The principles that shape every decision we make — and the ones we won't compromise on.
Privacy by default
Background removal and signing happen in your browser. Guest uploads are ephemeral and discarded after processing — we never store them, sell them, or train models on them.
Quality you can trust
Background removal preserves sharp edges, anti-aliasing, and a clean alpha channel, so your signature looks handwritten — not cut out. The strokes you sign with are the strokes that land on the page.
Nothing destroyed
PDF signing is overlay-based. Text layers, bookmarks, metadata, and embedded fonts survive intact. We never flatten or rasterize your document to drop a signature on it.
How it actually works
“Private” is easy to claim and hard to verify. Here's the mechanism behind ours.
- 01
It runs where you are
Open the tool and the work begins on your machine. Your signature photo and your documents are read into the browser tab — not posted to a server queue somewhere.
- 02
Processing is local
Background removal, transparent PNG export, and overlay signing all execute client-side. The bytes of your file stay on your device for the entire operation.
- 03
You decide what's kept
Guests keep nothing — close the tab and it's gone. Create an account and you control exactly what's saved to your Vault, and you can delete it whenever you like.
0
Files stored as a guest
<5s
Typical processing time
100%
In-browser processing
No
Account required to start
Ready when you are
Sign something in the next minute
No download, no account, no catch. Try it as a guest and see the quality for yourself.
Questions about PureSign? [email protected]