PageYak

Add a watermark to a PDF

Stamp text or your logo across PDF pages, with a live preview. Nepali text works too. Free, and your file never leaves this device.

One PDF file.

Processed on this device. Nothing is uploaded. How it works

Very large files depend on your device's memory.

How to watermark a PDF

  1. 1

    Choose your PDF

    Tap Choose PDF file, or drop it onto the box.

  2. 2

    Make the watermark

    Type text or pick a logo, then set size, angle and strength. The preview updates as you go.

  3. 3

    Save and download

    Tap Add watermark, then Download PDF.

Limits and supported files

Accepted filesOne PDF (.pdf) at a time. Files that need a password to open must have it removed first.
WatermarkText up to 60 letters in any language, or a PNG, JPG or WebP picture.
How it is addedAs a see-through picture on top of each page, drawn sharp enough to print.
Where your file goesNowhere. The watermark is added in this browser tab.

Privacy: how this tool handles your file

When you use Watermark PDF, your browser reads your file on your device and the tool's code does the work in this tab. PageYak's server only sends the page and its code. It never receives your file, so there is nothing to delete afterwards.

How PageYak works explains this in more detail.

Why add a watermark

  • Marking drafts as DRAFT or CONFIDENTIAL before sharing them for review.
  • Adding your company name or logo to proposals, price lists and catalogues.
  • Stamping copies of ID documents with "For visa application only" so they are harder to misuse.
  • Showing ownership on design samples and photographs in a PDF portfolio.

Questions

Can someone remove the watermark?

A watermark shows who a copy belongs to or that it is a draft. People with PDF editing software can still remove it, so it is a label, not a lock. To stop people opening the file, add a password with Protect PDF.

Can I write the watermark in Nepali?

Yes. Type it in Unicode Nepali, for example गोप्य. The text is drawn with a Devanagari font so letters join correctly.

How do I stamp my logo?

Choose Logo or picture and pick the file. A PNG with a see-through background looks best. Set the strength to Light so the page stays easy to read.

Will the watermark show on every page?

Yes, unless you choose specific pages. It is drawn into each page, so it shows in every PDF reader and when printed.

Can I make the watermark lighter?

Yes. Lower the Strength setting so the text under it stays easy to read.

Last updated 12 November 2026.