How to Add a Watermark to a PDF for Security
Protect your intellectual property by stamping a custom text watermark across every page of your PDF.
Document Protection
When sharing draft reports, confidential designs, or proprietary information, adding a watermark (like "CONFIDENTIAL" or "DRAFT") is a standard security practice. It discourages unauthorized sharing and clarifies the document's status.
Using the Watermark Tool
- Upload your target PDF.
- Type your desired watermark text (e.g., "DO NOT DISTRIBUTE").
- Adjust the Opacity (usually 20-30% is best so the text behind it remains readable).
- Set the Angle (a 45-degree diagonal stamp is the industry standard).
- Click Apply. Tuko will embed the text onto every single page instantly.
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