Cobalt Tools UploadReady

Free browser PDF tool

Watermark PDF Online Free

Stamp text diagonally across each page and download a new watermarked PDF.

Text watermarkAll pagesLocal processing

FREE browser PDF tool

Watermark PDF

Add a text watermark to a PDF.

How to use this tool

  1. 1

    Upload a PDF.

  2. 2

    Enter watermark text.

  3. 3

    Download the watermarked PDF.

Where are my files and text processed?

Processing takes place locally in your browser. Your selected files and text stay on your device during processing.

Is this tool free to use?

Yes. Use this tool for free, directly in your browser, without an account.

How do I save the result?

Use the download or copy action in the workspace once your result is ready.

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