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PDF Watermark

Stamp CONFIDENTIAL, DRAFT, “For KYC only” or your logo across a PDF. Choose the size, angle, opacity and pages, see a live preview, and download — without uploading the file.

Runs in your browser Free · no sign-up

At a glance

  • Adds a text watermark (any language, including Hindi) or an image/logo watermark (PNG, JPG, WebP) to a PDF.
  • Place it once — centred, in a corner or along an edge — or repeat it across the page in a diagonal pattern.
  • Set the size, rotation, opacity, font, colour and which pages get it, with a live preview of each page.
  • One-click presets: CONFIDENTIAL, DRAFT, COPY, SAMPLE, DO NOT COPY and “For KYC only · today’s date” for ID copies.
  • The watermark is stored once and reused on every page, so 500 pages cost no more than one; the original text stays selectable.
  • Pages with their own rotation get an upright watermark as the reader sees them.
  • Runs entirely in your browser: the PDF and your logo are never uploaded.

Step by step

How to add a watermark to a PDF

  1. 1

    Open the PDF

    Drop a PDF onto the box or click to choose one. Enter its password if it has one.

  2. 2

    Write the watermark

    Type your text or pick a preset such as CONFIDENTIAL, or switch to Image / logo and choose an image.

  3. 3

    Style and place it

    Set the size, colour, rotation and opacity, and choose Once (with a position) or Repeat across page.

  4. 4

    Download

    Choose the pages and click Add watermark. The watermarked PDF downloads straight away.

Features

Everything you need, nothing you don’t

Protect ID copies

Stamp “For KYC only” with the date across Aadhaar, PAN or passport copies, so a copy can’t easily be reused for something else.

Live preview

See exactly where the watermark lands on each page before saving — what you see is what you get.

Once or repeated

A single diagonal stamp, a small mark in a corner, or a repeating pattern that covers the whole page.

Your logo

Upload a PNG with a transparent background and set its width — ideal for branding reports and proposals.

Any language

Hindi, Tamil, Arabic, emoji — if your browser can show it, it works in the watermark.

Private

Documents and logos are processed on your device. Nothing is uploaded or stored.

Watermarking ID copies for KYC

When a bank, landlord or employer asks for a copy of your Aadhaar, PAN or passport, a watermark stating who it is for and when makes it much harder to misuse. Use the For KYC only preset, add the organisation’s name if you like — “For HDFC Bank KYC only · 30 Sep 2026” — and choose Repeat across page so it crosses every detail.

Keep the opacity around 20–35% so the document stays readable. For extra privacy, first hide the numbers you don’t need to share with Redact PDF, then watermark the result.

Good settings to start with

PurposeTextLayoutAngleOpacity
Confidential reportCONFIDENTIALOnce, centre45°15–25%
Draft for reviewDRAFTOnce, centre45°20%
ID copy for KYCFor … KYC only · dateRepeat across page30–45°25–35%
BrandingYour logoOnce, bottom-right0°60–100%

FAQ

Frequently asked questions

Is it safe to watermark documents here?

Yes. The PDF and any logo you add are processed in your browser and never uploaded or stored.

Can the watermark be removed?

A watermark is drawn onto the pages, but PDF editors can delete added objects. For ID copies, a repeated, semi-transparent watermark crossing the details is the hardest to remove cleanly. For stronger control, also protect the PDF with restrictions.

Can I write the watermark in Hindi?

Yes. Text is drawn by your browser, so Hindi and every other script your device supports work, as do emoji.

Will the text in my PDF still be selectable?

Yes. The watermark is added on top of the pages; the original text, links and quality are unchanged.

Can I watermark only some pages?

Yes. Choose Choose pages and type pages or ranges, such as 1, 3-5 or odd.

Does a watermark make the PDF much bigger?

Only a little. The watermark is stored once as a small image (typically 20–80 KB for text) and reused on every page, however many there are.

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