Watermark PDF
Local only — nothing is uploaded unless you save or share it.
Add a watermark to a PDF — DRAFT, CONFIDENTIAL, or a client's name across every page.
- Drop in the PDF you want to mark
- Type the word — DRAFT, CONFIDENTIAL, a name — and choose where it sits
- Download the watermarked PDF, or save it to your account
A watermark is a mark, not a lock — anybody with the right software can take it off again.
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Use your browser's Share menu, then “Add to Home Screen”.
About this tool
A watermark says what a document is before anybody reads a word of it. A draft watermark stops a version being quoted back at you as final — add draft watermark to pdf pages and nobody can mistake it for the signed copy. CONFIDENTIAL sets an expectation before the first page is turned. A client's name on every page of a proposal makes it awkward to forward, which is often the whole intent. To add watermark to pdf pages, drop the file in and type the word: this will stamp pdf pages with it and give you the file back. Diagonally across the middle, centred, or as a quiet line in the footer — and you choose how faint it is, because a watermark that obscures the text it is protecting has defeated itself. The document stays a document. The pages are not flattened into pictures, so the text is still selectable, the links still work, and the file stays roughly the size it was. That is worth saying because it is the difference between this and most free watermark tools, which quietly turn every page into an image and hand back something four times larger that nobody can search. And one thing it is not. A watermark is a mark, not a lock. Anybody with the right software can take it off again, and no tool that adds one can change that. It tells an honest reader what they are holding; it does not stop a dishonest one. If the content itself must not be read, the answer is a password or not sending the file — not a diagonal word. It runs in your browser, so the PDF never reaches us. For a contract or an unreleased proposal that is not a small detail: the document you are marking confidential is precisely the one you should not be uploading to a website to have a word written on it.
Frequently asked questions
Can someone remove the watermark?
Yes, with the right software. A pdf watermark is drawn onto the page like any other text, and anybody who can edit a PDF can edit it out. That is true of every watermark tool, free or paid, and anyone claiming otherwise is selling a feeling. Use it to say what a document is, not to stop somebody determined.
Does it turn my pages into images?
No. Most free watermark tools flatten each page into a picture, which is why the file comes back four times larger and nothing in it can be searched or selected any more. This draws the text onto the existing page, so the document stays a document.
Can I watermark only some pages?
Yes — give the page numbers and the rest are left alone. Useful for marking an appendix as a draft while the agreed part of a document stays clean.
Why is my watermark so faint?
Because it defaults to faint on purpose. A confidential watermark pdf that nobody can read through is a document you have damaged rather than protected. A watermark's job is to be noticed without making the document harder to read, and the usual mistake is far too dark. Turn the opacity up if you want it louder — the slider goes all the way to solid.
Is my PDF uploaded to your servers?
Not from this page — the watermark is added in your browser and the file never leaves your computer. That matters more here than on most tools, because a document worth marking CONFIDENTIAL is exactly the kind you should not hand to a website. The API is the exception and says so: calling it from a script does send the file, because a server has to do the work.
What about a logo instead of text?
Not yet — this stamps text. An image watermark is a fair thing to want and is on the list; if it is what brought you here, tell us on the contact page, because that is how we decide what to build next.
Help improve this tool
Found a bug, want a change, or need a tool we don't have?
You have an unsent draft.
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