PDF Watermark

Add Draft / Confidential text watermarks or a logo to PDF files in your browser. Adjust opacity, rotation, tiling, and page ranges. Fully local — no uploads.

Upload PDF

Drop a PDF here, or click to select

What You Can Do With It?

Mark Contracts Confidential

Stamp confidential marks before sharing agreements for review

Label Draft Reports

Keep unfinished decks and memos clearly marked as drafts

Control Internal Docs

Tile “Internal Only” across policies and training packs

Separate Review Versions

Use different watermarks to show review status across versions

Brand with a Logo

Place a company logo watermark without burying the content

Protect Course Packs

Tile attribution across lecture PDFs to discourage resharing

How To Use?

1

Upload PDF

Drop or select the PDF you want to stamp

2

Configure Watermark

Enter Draft / Confidential text or a logo; set style and pages

3

Download

Preview, then download the watermarked PDF

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Frequently Asked Questions

Yes. Text watermarks are drawn with the browser Canvas API, then embedded as images — Chinese, Japanese, and other scripts work without uploading font files.

Why add a watermark to a PDF in 2026?

Contracts, drafts, and course packs often need an obvious Confidential / Draft / Internal mark before they leave your device. Desktop apps are heavy; many online tools upload your file. MeTool’s PDF watermark tool stamps text or a logo entirely in the browser, with live preview and page-range control.

Reliable CJK “Confidential / Draft” marks

Standard PDF fonts cover Latin glyphs only, so drawing Chinese with drawText often fails. This tool renders watermark text on a Canvas (using system CJK fonts), then embeds a transparent PNG on each page. Short labels like 机密 / 草稿 work without shipping multi‑megabyte font files.

Typical scenarios

Contracts before external review

Tile a light “Confidential” mark so screenshots and forwarded copies stay clearly marked.

Draft reports and proposals

Label unfinished decks and memos as Draft so they are not quoted as final.

Internal training and policies

An “Internal Only” tile raises the cost of casual resharing without burying the content.

Page ranges and live preview

Apply to all pages, the first page only, or custom ranges such as 1-3,5. Preview and export share the same geometry for position, rotation, and tiling—adjust opacity and see the result before download.

FAQ

Q: Can I still select text after watermarking?
A: Usually yes. The tool overlays a semi-transparent layer instead of rasterizing whole pages.

Q: What about encrypted PDFs?
A: Not supported in the first version. Remove the password locally, then upload.

Q: Are files uploaded?
A: No. Parsing, preview, and writing all stay in your browser.