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Protect PDF: owner mark and watermark on every page

Add a visible owner mark, copyright footer and watermark to every page of your PDF. Two protection levels: clean Notice mark, or Strict tiled pattern. 100% secure. Nothing uploaded, nothing stored. No quality loss, no sign-up, no extra branding.

  • Owner mark on every page
  • Notice or Strict level
  • No quality loss
  • Works offline

100% secure. Your PDF is never uploaded or stored. How we keep it private

  • 100% Secure
  • No Upload
  • No Storage
  • No Sign-up
  • Works Offline
  • No Quality Loss

All PDF tools

19 free PDF tools: flatten, edit, merge, split, compress, convert, rotate, sign, protect and more. Nothing uploaded, ever.

See all ToolDeck tools

How it works

  1. 1

    Drop your PDF

    Drag or click to choose. Nothing is uploaded, nothing is stored.

  2. 2

    Add owner and mark

    Your name, optional contact, watermark text and level (Notice or Strict).

  3. 3

    Download protected PDF

    Get a PDF with your owner mark on every page. No extra branding from us.

Everything you get for free

  • Owner mark on every page

    Your name or company appears in the footer of every page with the copyright symbol and date. Anyone who sees the PDF knows who owns it.

  • Two protection levels

    Notice: one clean diagonal watermark. Strict: tiled pattern across the whole page. Pick the visibility you want.

  • 100% secure, nothing uploaded

    Everything runs in your browser using pdf-lib. Your contracts, reports and private documents never touch a server.

  • Presets for common marks

    Pick CONFIDENTIAL, DRAFT, INTERNAL, DO NOT COPY or SAMPLE in one click. Or type your own.

  • No sign-up, no email, no extra branding

    Open, drop the PDF, protect, download. We do not add our own watermark on top of yours.

  • No quality loss

    We draw text on the existing pages. Text stays selectable, images stay at original quality.

What people use it for

  • Mark a document DRAFT

    Show reviewers that a document is not final before they edit or approve.

  • Mark CONFIDENTIAL

    Add a clear confidentiality mark to legal, HR or financial documents.

  • Copyright notice

    Embed a copyright line in the footer of every page before publishing publicly.

  • Client review copies

    Mark preview copies sent to clients so you know which version leaked if it appears elsewhere.

  • Internal only

    Stamp INTERNAL on company documents so it is obvious they should not be shared externally.

  • Deter casual copying

    A tiled watermark makes screenshots and casual re-use obviously marked.

Questions people ask

Is this real AES-256 encryption?

No, and we want to be upfront about it. Browsers cannot password-encrypt PDFs with AES-256, because that requires a Node.js server or a desktop app. This tool adds visible protection: an owner mark, copyright footer and watermark on every page. That deters casual copying and proves ownership, but a determined person with a PDF editor could remove the mark. For true AES-256 encryption, use Adobe Acrobat, Mac Preview, or another desktop tool.

Is my PDF uploaded anywhere?

No. Everything runs in your browser using pdf-lib. Your files never leave your device, so we cannot see them.

Is it really 100% secure?

Yes. Nothing about your file leaves your browser. Open your browser network tab while you use the tool to verify.

What is the difference between Notice and Strict?

Notice adds one clean diagonal watermark plus an owner footer, for a professional look that keeps the content easy to read. Strict adds a tiled pattern across the whole page, which is harder to remove and makes any screenshot obviously marked.

Can I use my own watermark text?

Yes. Type anything up to 30 characters, or pick a preset (CONFIDENTIAL, DRAFT, INTERNAL, DO NOT COPY, SAMPLE).

What goes in the footer?

Your owner name, optional contact (email or website), the copyright symbol, and today's date. This appears on every page.

Does it strip the PDF text?

No. We only draw on top. Text stays selectable, images stay at original quality, forms stay in place.

Is there a file size limit?

No. iLovePDF caps free users at 5MB. We impose no limit. The practical limit is your device memory.

Does it work on iPhone and Android?

Yes. Safari on iOS and Chrome on Android both work. No app needed.

Does it work offline?

Yes. Once the page has cached pdf-lib, you can switch off WiFi and protect PDFs locally.

Can I protect multiple PDFs at once?

Not in this version. One PDF at a time.

Will someone be able to remove my mark?

Yes, with a PDF editor. That is the honest truth about all visible watermarks. This tool raises the cost of casual copying and proves ownership; it is not DRM.

100% secure: nothing stored

Everything runs in your browser. There is no upload step, no temporary server-side storage, no database, no retention. Open your browser network tab while you use the tool to verify. See why ToolDeck is different.