Free forever · Privacy-first

    Free PDF Watermark

    Free PDF watermarks added on your device. Mark drafts as confidential or branded before sharing. We help you add a watermark; we do not strip someone else's.

    • Looks paidActually free
    • No uploadRuns on your device
    • No accountNothing to sign up for
    • No watermarkYour file, untouched

    More free PDF tools

    Same quality bar. Still free. Still no upload.

    Your files never leave your device

    Free to use, with no account, no usage limit and no watermark, because the work runs on your device rather than on our servers.

    This is not a promise about how carefully we handle your upload. There is no upload. The file you choose is read into memory by your own browser, processed there, and handed back as a download — the tool has no server component and makes no network request with your data.

    • Nothing is stored. We never receive the file, so there is no copy to retain, no retention period to disclose, and nothing to delete on request.
    • Nothing is transmitted. No upload endpoint, no analytics payload carrying file contents, no third-party processor.
    • You can verify it. Load this page, disconnect from the internet, and use the tool. It still works, because everything it needs is already on your machine.
    • Nothing persists after you close the tab. Files are held in page memory only — not in local storage, not in a cache, not in a database.

    A note on wording, because it matters: we do not describe these tools as “encrypted.” Encryption protects data that travels to somebody else's computer. Your file does not travel, so there is nothing to encrypt and nothing to intercept — which is a stronger guarantee than encryption, not a weaker one. The page itself is served over HTTPS like the rest of the site.

    This makes the tools safe for material you are contractually barred from uploading to third-party services — client footage under NDA, unreleased campaign assets, anything covered by a confidentiality clause.

    How it works

    1. 1. Drop a PDF

      Up to 150 MB and 500 pages, opened in your browser.

    2. 2. Set the mark

      Type the text, choose diagonal or straight, and set size and opacity.

    3. 3. Download the watermarked PDF

      The grey text is added to every page as real text in Helvetica.

    Questions

    Can someone remove this watermark?

    Yes. It is a text object in the page content, the same as a heading. A PDF editor can delete it, white it out, or crop the page. A watermark here is a visible reminder, not protection, and it should not be treated as one.

    Why did some characters become question marks?

    The overlay is Helvetica, which only encodes WinAnsi. Emoji, CJK, and many symbols are not in that set. They are replaced with '?' so the rest of the file still writes, rather than failing the whole document on one glyph.

    Can I watermark only some pages or use an image?

    No. The mark goes on every page and it is text only, in grey Helvetica. Opacity runs from 0.08 to 0.8, so a light DRAFT sits behind the content rather than hiding it.

    Related tools

    Stay in the same job cluster. Free tools stay on-device; paid tools are labelled as such.

    These rearrange files. Versely makes new ones.

    Everything on this page works on a file you already have, which is why it costs nothing. Generating something that did not exist (video from a prompt, a voice, a score) runs a model, and that costs credits.