PDF Utilities
Add PDF Watermark
Staple custom text labels across pages of a PDF to mark draft or proprietary statuses.
Upload your PDF file to add watermark
Max file size: 25MB. Supported: application/pdf
About PDF Watermark Tool
Our client-side PDF Watermark Tool lets you overlay security stamps like 'CONFIDENTIAL', 'DRAFT', or 'DO NOT COPY' onto your documents. You can customize font sizes, rotation angles, opacities, stamp colors, and position alignment (including repeating grid tiles). Running entirely on the client, your files never touch a server, keeping your legal papers or billing invoices 100% private.
How to use PDF Watermark Tool
- Select and upload the PDF file you wish to protect.
- Type in your watermark text, and modify style parameters like font size, tilt angle, or transparency.
- Choose a position alignment (like Center, Corner placement, or Tile Grid).
- Pick a color for the text overlay.
- Click 'Apply Watermark' to write vector overlays on all pages using pdf-lib.
- Tap 'Download PDF' to save your watermarked document.