Add Watermark to PDF
Add a text watermark to every page of a PDF online for free. Set opacity, color, rotation, and tiling. No uploads — files never leave your browser.
About Add Watermark to PDF
Stamp a text watermark onto every page of a PDF in seconds — entirely in your browser. Type any text such as CONFIDENTIAL, DRAFT, or your company name, then customise how it appears: choose opacity from nearly invisible to bold, pick a font size, select any color with the color picker, and set the angle to horizontal or 45° diagonal. Enable tiling to repeat the watermark in a grid pattern across each page for maximum coverage, or place a single watermark in the center of each page. The watermark is embedded as text directly in the PDF, making it visible in any PDF viewer. All processing happens locally — your file never leaves your device. The original PDF is never modified; the tool creates a new watermarked PDF ready to download immediately. This tool is useful for marking drafts, protecting documents before sharing, or branding exported reports. No account required and no software to install.
Frequently Asked Questions
- Can I make the watermark semi-transparent?
- Yes. Use the opacity slider to set transparency from 10% (nearly invisible) to 100% (fully opaque). A setting around 30% is common for draft watermarks.
- What does "tile" do?
- Tiling repeats the watermark in a grid pattern across the full page instead of placing it once in the center.
- Are my files uploaded to a server?
- No. All processing happens in your browser. Your PDF never leaves your device.