Watermark PDF
Add custom text watermarks to any PDF — adjust opacity, angle, and position.
Secure Your Documents with Custom Watermarks
Whether you are distributing a confidential draft, stamping invoices as PAID, or protecting your intellectual property, our Watermark PDF tool makes it simple to apply professional text overlays across all pages of your document.
Full Customisation
Take complete control over your watermark appearance. Type any custom text or use one of our quick presets. Adjust the font size, select a specific hex colour, and tune the opacity to ensure the watermark is visible without obscuring the underlying document.
Positioning Options
Place your watermark exactly where you need it:
- Diagonal: The standard corporate style, stretching across the center of the page.
- Center: A straightforward horizontal stamp in the middle.
- Bottom: A subtle footer mark ideal for copyright notices.
Client-Side Processing
Adding a watermark is often the last step before sharing a highly sensitive document. Because PDFMarkr runs entirely in your browser, your un-watermarked original file is never exposed to external servers.
Frequently Asked Questions
Currently, this tool supports text watermarks only.
Yes. The watermark is drawn directly into the PDF content stream, making it a permanent part of the document.
Currently, the watermark is applied universally across all pages in the document.
No, a watermark is a visual overlay. It deters unauthorised sharing but does not lock the document from text extraction.
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