Add Watermark

Add text watermark to PDF

Free: 50 MB max20 ops/daySecure & private

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Drag & drop files here, or click to browse

PDF · up to 50 MB (free)

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How it works

Upload your PDF

Enter watermark text

Adjust opacity, size, and rotation

Download watermarked PDF

Add a text watermark to every page of your PDF. Customize the text, opacity, font size, and angle.

Can I customize the watermark appearance?

Yes. You can set text, opacity (5-100%), font size, and rotation angle.

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Files auto-deleted in 1 hour

No data sharing

Works in any browser

See how Konomic compares to popular add watermark tools: