Protect your confidential PDF documents, brand corporate contracts, and prevent unauthorized file distribution by stamping text or PNG/JPG image logos directly onto your PDF pages. Use the free, 100% private, browser-based PDF Watermark tool on RiazHub. Featuring live 60fps canvas preview, 9-point grid positioning, tile repeat grid, custom opacity, font selection, rotation presets, and target page range controls with zero server uploads.
Add text or image watermark stamps to your PDF pages easily and securely.
100% Secure Client-Side Processing • No Server Uploads
Drop your PDF file here or click to browse
Supports PDF documents up to 100MB
Position & Rotation
Target Pages
Live Preview
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Processing PDF watermark...