Add a Watermark to a PDF

Stamp text (e.g. CONFIDENTIAL or your name) diagonally across every page of a PDF, in your browser. Private and free.

🔒 100% Private — files stay on your device⚡ No upload · no wait♾️ No limits · no signup🚫 No watermark
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Drop files here or click to choose

JPG · PNG · WebP · batch supported

Watermark PDF — how it works

Stamp text (e.g. CONFIDENTIAL or your name) diagonally across every page of a PDF, in your browser. Private and free.

Why FileZap is different

FAQ

What can the watermark say?

Any text you type — e.g. CONFIDENTIAL, DRAFT, or your name — is stamped diagonally across every page.

Can the watermark be removed by others?

It is drawn into the page content, so it is not a simple layer to toggle off — good for basic protection.

Is my PDF uploaded?

No, the watermark is applied in your browser only.

FileZap — free file tools that respect your privacy. Nothing is uploaded.
Compress Image·Convert Image·Resize Image·Image to PDF·HEIC to JPG·Rotate Image·Merge PDF·Split PDF·QR Code Generator·PDF to JPG·Compress PDF·Rotate PDF·Delete PDF Pages·Watermark PDF·Crop ImageGuidesPrivacy