💧 PDF Tools

Add Watermark to PDF Free Online — No Upload

Add a text or image watermark — single or tiled — with full control over position, rotation, and opacity. Your original text stays selectable.

🔒 Your PDF is never uploaded — everything happens locally in your browser.
⚠️ Honest note: a standard watermark is part of the PDF content and can be removed by someone with the right tools. This is a visual deterrent, not security. For genuine protection, use the flatten-to-image option below or proper document rights management.

Upload PDF(s)

Drag & drop or browse. Multiple PDFs get the same watermark, downloaded as a ZIP.

Drag & drop PDF files here

or click to browse.

Free PDF watermark tool online

ToolAdda's add watermark to PDF tool lets you stamp CONFIDENTIAL, DRAFT, custom text, or your company logo onto any PDF — tiled diagonally or placed once — with full control over opacity, rotation, font, and page selection. Everything runs in your browser with no upload.

How to watermark a PDF

  1. Upload your PDF — it never leaves your device.
  2. Choose Text or Image watermark and enter your stamp text or logo.
  3. Set opacity, rotation, tiled vs single, and which pages to apply.
  4. Preview live, then Download the watermarked PDF.

Text vs image watermarks

  • Text watermark — CONFIDENTIAL, DRAFT, page numbers, custom labels.
  • Image watermark — upload PNG logo with transparency preserved.
  • Tiled mode — diagonal repeat across the full page.
  • Selectable text preserved — original PDF text stays searchable.

PDF watermark FAQ

How do I add a watermark to a PDF for free?

Upload your PDF, enter watermark text or upload a logo, adjust opacity and position in the live preview, and download — all in your browser with no server upload.

Can the watermark be removed?

A standard watermark is part of the PDF content and can be removed by someone with the right tools — it's a visual deterrent, not security. For a much harder-to-remove result, use the flatten-to-image option, which rasterizes the page (at the cost of making the original text unselectable).

Does it work on scanned PDFs?

Yes — a scanned PDF is just page images, and the watermark is drawn on top of (or behind) whatever is already on the page, so it works the same way.

Can I use my logo?

Yes — upload a PNG (transparency is preserved) or JPG on the Image Watermark tab, then adjust its scale, opacity, rotation, and position.

Will my text stay selectable?

Yes, by default. This tool draws the watermark as real vector text/image content using pdf-lib, without rasterizing your pages, so all original text remains selectable and searchable — unless you specifically turn on the flatten-to-image option.

Is my PDF uploaded?

No. All watermarking happens locally in your browser. Your file never leaves your device.