or drop files here
The watermark is drawn onto every page of the PDF so it appears in every viewer and when printed.
Protect drafts and brand your documents with a clear text watermark. Pick the wording, color, transparency, size and angle and preview it live.
Live preview: See the watermark on your real page before saving. Full styling: Color, opacity, font size and rotation angle.
Your documents are processed entirely inside your browser memory using WebAssembly and HTML5 Canvas. Files never leave your computer or phone.
Balanced size & high visual quality
Smallest file size (up to -90%)
Use Watermark PDF directly in your browser—no software installations, sign-ups, or learning curves.
Run smoothly in Chrome, Safari, Edge, or Firefox on desktop, laptop, tablet, and smartphone.
See the watermark on your real page before saving.
Your documents are processed locally on your device—we never collect, upload, or store your files.
Color, opacity, font size and rotation angle.
Every option is unlocked for free with no daily task timers, no paywalls, and no watermarks.
Step-by-step guide to getting the fastest, cleanest result with Watermark PDF directly in your browser without installing software.
Learn how our local WebAssembly engine preserves fonts, layout, and clarity while processing your document.
Understand how browser-based PDF processing protects confidential contracts, resumes, and financial records.
Boost productivity with unlimited, 100% free access to all of Fr. Tools’ private browser-based PDF tools for taking the hassle out of document work. Do more, better, faster.