Remove a CONFIDENTIAL stamp from a PDF.
Once it no longer is.
The report has been cleared for release and every page still says CONFIDENTIAL. Upload the PDF. If it has real text, the stamp is deleted as an object and the text stays selectable. If it is a scan, the stamp is reversed out of the page image and the print underneath is kept.
or drop one anywhere on this pagePDF or scanned PDF, up to 25 MB each
Nothing is uploaded until you confirm. The confirmation is recorded with each upload; the file and its name are not.
No account. Your file goes into private storage that only this app can read, and is deleted once it has been processed. The cleaned file can be downloaded for one hour, and a daily sweep deletes it, with anything left unfinished, within about 26 hours. The models run inside this app. House rules
Your files
Real text or a scan: the PDF is sorted first, and each kind gets the method that suits it.
With real text the stamp is deleted as an object and the text stays selectable. On a scan it is reversed out of the page image and the print underneath is kept.
Sort
Unstamp checks whether the PDF holds real text or pictures of pages, and picks the method that suits it.
Lift
In a PDF with real text the CONFIDENTIAL stamp is deleted from the file: annotation, layer, rotated text or repeated image.
Paper
In a scan the stamp is found on each page and reversed out of the page image, and the printed words under it keep their weight.
Before you upload
Does removing the stamp change who may see the document?
No. A watermark is a label, not a lock. Remove it only when the document is yours to release, and tell the people who need to know that its status has changed.
The stamp is red and diagonal across the page. Will it go?
Yes in a PDF with real text, where it is a separate object. In a scan, a pale or translucent red stamp lifts cleanly. A solid stamp that hides the print cannot give the hidden words back.
It also says CONFIDENTIAL in the footer of each page.
Type the exact footer wording into the phrase box and run the file again. Text that shares a line with other words is redacted in place, and you are told which pages to check.
Will the text still be selectable?
Yes, for PDFs with real text. A scan stays a scan: its pages were pictures before and are pictures after.
What does it cost?
Nothing at the moment. Finding the mark, seeing the result and downloading the clean file are all free while Unstamp is being opened up.
Is my file kept?
Not for long. Your upload goes into private storage that only this app can read, and is deleted once it has been processed. The cleaned file can be downloaded for one hour, and a daily sweep deletes it, with anything left unfinished, within about 26 hours. The models run inside this app, and nothing is used for training.
Can I use this on a document that is not mine?
No. Unstamp is for documents you own or have permission to edit, and it asks you to confirm that before anything is processed. It refuses stock agency marks and AI generator labels outright.