Remove a letterhead or stamp from every page

Contracts, invoices and letters carry the same identifying marks on every page: the letterhead at the top, the company stamp or chop in the corner, initials or a signature at the foot. On a scan none of it is text, and on a fifty-page bundle all of it has to go.

Open the tool Free below twenty pages, in your browser. Nothing is uploaded.

Before

After

A scanned page before and after: names, a date and an identifying mark are replaced with black bars.

Why these are hard to remove

A letterhead in a born-digital PDF is an image. A stamp on a scan is part of the page picture, slightly rotated, a different strength of ink on every sheet, sometimes overlapping the text. A signature is never quite the same twice. None of them can be searched for, and a box drawn at the same position on every page misses the ones that moved when the paper was fed.

Pick one; the rest are found

Draw a box round one letterhead, one stamp or one signature. Every page is searched for that shape, allowing for a different size, position, colour or ink strength, and each match is proposed with its page and a confidence you can accept or turn down.

Stamps and signatures vary more than printed logos, so their matches score lower. Each picked image has its own sensitivity, offered as the few settings the scores on your document point at, with how many matches each would give. You can see immediately whether a looser setting picks up the faint copies or starts catching things that are not the stamp.

The text on the page as well

Type the company name, the signatory and the reference numbers. On a scan they are read by text recognition inside your browser, and a second check looks again at anything written in lettering too small or unusual to read. Names, stamps and letterheads are all removed in one pass.

Signatures, fairly

A printed logo is the same picture every time, and it is matched very reliably. A handwritten signature is not: each one is drawn afresh, and two signatures by the same person differ more than two prints of a logo ever do. Picking one signature finds the others when they are close in shape, and the list will show you which pages were matched. For a signature that varies a lot, pick two or three of them, or cover the signature blocks with a box of your own; the rebuilt export removes them just as completely.

Removed for good, and never uploaded

The export rebuilds every page from pixels, so a covered stamp is not underneath a box; it is gone. And the documents never leave your machine: the whole process runs in the browser tab, which is not permitted to send anything anywhere. That matters for signed contracts and personal records that should not pass through a third-party server.

How to do it, in four steps

Open the PDF or scan. It is processed only in your browser.
Draw a box round one letterhead, stamp or signature.
Check the proposed copies on every page, and adjust the sensitivity if faint ones were missed.
Type any names or numbers, then redact and export.

Who it is for

Legal and compliance teams sharing contracts, finance teams sending invoices to auditors or suppliers, and anyone publishing scanned correspondence.

Open the tool

Questions

Will it find a stamp that is rotated or faint on some pages?

Usually, within limits. Matching allows for size, colour and ink strength; a stamp rotated well off square, or mostly hidden under text, may score too low and should be checked by eye.

Does it work on scanned documents?

Yes. Scans are matched by shape, and their text is read by recognition that runs inside your browser.

Are my documents uploaded?

No. Nothing leaves your machine, and the page is prevented from sending data anywhere by its own security policy.

Also

Back home