Watermark

Add Watermark to PDF

Add a text or image watermark to your PDF. Free, private, in your browser.

Drop PDF files here

or choose files

Your files never leave your device.

No upload proof

This tool runs locally in your browser using JavaScript or WebAssembly. PDF Plain does not receive your PDF content.

You can verify this yourself: open your browser's Network tab while using the tool and watch - no PDF file is sent.

    FAQ

    Can I add an image watermark?

    Yes. Use a PNG or JPG image.

    Can I watermark only some pages?

    Yes. Enter page ranges such as 1-3, 7.

    Can opacity be adjusted?

    Yes. Use the opacity setting before downloading.

    Are files uploaded?

    No. Watermarks are added locally.

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