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Stamp a PDF

Upload a photo of your stamp, add the document, drag the imprint to where it belongs. The white paper around the imprint is dropped for you, the file is rebuilt on your own device, and nothing leaves the browser. What you get is a picture of a stamp on the page — it certifies nothing, exactly like a stamped printout that was scanned back in.

A stamp put here is a picture on top of the page — nothing is certified by it. It is worth exactly as much as printing the document, stamping it by hand and scanning it back: enough for an invoice, a delivery note or an internal approval, not enough where a qualified electronic signature or a notary is required. Use your own stamp on your own documents. Putting somebody else’s stamp on a paper is forgery in most countries, and doing it in a browser does not make it anything else.

A stamp on white paper works best — the white is dropped automatically, so only the imprint lands on the page.

or drop them here

A PDF up to 100 MB

The document and the stamp stay in this browser: nothing is uploaded anywhere, which is also why nobody here could certify anything even if we wanted to.

Also on PDFs: Sign a PDF PDF Editor Merge PDF Compress PDF

How to use

  1. Upload a photo or scan of your stamp — an imprint on white paper works best, the white background is removed for you.
  2. Add the PDF, open the page you need and press «Put it on this page».
  3. Drag the imprint into place, set the size, tilt and ink density, then build the stamped PDF and download it.

Good to know

What a stamp put here is worth

Exactly as much as printing the document, stamping it by hand and scanning it back — no more and no less. There is no certificate here, no cryptography and no timestamp; the file simply gets a picture on top of the page. For an invoice, a delivery note, a quote or an internal approval, that is what people mean when they ask for a stamped copy. Where a qualified electronic signature or a notary is required, this is not it and cannot be. And the obvious part that is worth saying out loud: use your own stamp on your own documents. Putting somebody else's stamp on a paper is forgery in most countries, and doing it in a browser does not make it anything else.

Why the imprint is tilted and see-through

A real stamp is pressed by hand: it lands slightly askew, and the text underneath shows through the ink instead of disappearing under it. An imprint pasted dead straight at full opacity reads as a sticker glued onto the page — everyone recognises it at a glance. So the tilt starts a few degrees off true and the ink starts a little short of solid, and both are yours to change: up to thirty degrees either way, and from a faint touch to full colour.

The page keeps everything it had

Nothing is redrawn or flattened: text stays text, fonts stay embedded, images keep their resolution, and the rest of the document is copied over untouched. Placement takes the page's own rotation into account — scans are very often marked as turned, and an imprint placed without noticing that mark either lies on its side or lands off the sheet. Here it goes where you see it, on any of the four rotations.

Frequently asked questions

Does a stamp added here make the document official?

No. It carries the same weight as a stamp pressed onto a printout that was then scanned — which for invoices, delivery notes and internal paperwork is usually exactly what is being asked for. If someone needs a qualified electronic signature or a notarised copy, they need a certification authority or a notary, not this page.

Is my document uploaded anywhere?

No. The PDF and the stamp stay in this browser, on your device. That is also why nobody here could certify anything even if we wanted to: we never see the file.

My photo of the stamp has a white background — will it cover the text?

No, the white is dropped automatically and only the imprint lands on the page, with the document showing through around it. A picture that already has a transparent background is left exactly as it is. The cleaner the shot — even light, no shadow across the paper — the cleaner the edges of the imprint.

Can I put the stamp on every page?

Yes. Place it once, adjust it, then press «On every page» — it goes onto all of them in the same spot relative to the sheet, so pages of different sizes still get it in the same place. Any single page can then be dragged separately.

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