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QuickImageTool

Add Watermark to PDFOnline for Free

Stamp text like CONFIDENTIAL or your logo on the pages of a PDF. Adjust size, opacity and angle with a live preview.

  • Files stay on your device
  • No sign-up
  • Free, no watermark

About this tool

Add Watermark to PDF Online

Add a watermark to a PDF to mark it as a draft, confidential or your own work. Type text such as CONFIDENTIAL, DRAFT or SAMPLE, or upload your logo as a PNG or JPG, then adjust the size, colour, opacity and angle while watching a live preview of the page.

Place a single watermark in the centre of the page or tile it in rows across the whole page, and apply it to every page or only the pages you list. Photographers, designers and agencies use it to brand proofs and portfolios, while businesses stamp contracts, quotes and internal documents before sending them out.

The watermark becomes part of the page content, so it appears in every viewer and printout — a clear deterrent against copying, though not a lock. Your PDF and logo are processed in your browser and never uploaded.

  • Text or logo watermark

    Use any text, or upload a PNG or JPG logo — transparent PNGs look best.

  • Opacity and rotation

    Fine-tune size, colour, transparency and angle with a live preview.

  • Tiled or centred

    Repeat the watermark across the page or keep one mark in the middle.

  • Choose the pages

    Watermark the whole document or only selected pages such as 1-3, 5.

Step by step

How to watermark a PDF

  1. 1

    Upload your PDF

    Click Choose PDF or drag and drop your file into the upload box.

  2. 2

    Create the watermark

    Type text such as CONFIDENTIAL or upload a PNG or JPG logo, then adjust size, colour, opacity and rotation.

  3. 3

    Choose the pages

    Watermark all pages or only the pages you list, like 1-3, 5. The preview shows how it will look.

  4. 4

    Download

    Click Add watermark and the watermarked PDF downloads straight away.

FAQ

PDF Watermark FAQ

Can't find your answer? Contact us.

Yes. Watermark as many PDFs as you like for free, with no sign-up and no extra branding added.

Yes. Switch to Image watermark and upload a PNG or JPG. A PNG with a transparent background looks best. You can set its size and opacity.

Yes. Choose "Tiled across the page" to repeat the text in rows at any angle, or keep a single watermark in the centre.

The watermark is added to the page content, so it shows in every viewer and printout. Someone with a PDF editor could still remove it, so it deters copying rather than locking the file.

No. Your PDF and image are processed in your browser and never uploaded, so they stay on your device.

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