Is my file uploaded to a server?

No. All processing happens inside your browser.

Can I use non-Latin text in the watermark?

Yes. A bundled font ensures non-Latin text renders correctly.

💧 PDF Watermark

Add a text watermark to every page of a PDF.

Drop your PDF file here

Click or drag a file

🔒 Uploaded files are never sent to a server — processed entirely in your browser

How to add a watermark

Select the PDF file.
Set the text, color, size, opacity and angle.
Press Add Watermark and the file is saved.

💡 Why documents need a watermark

Marking a document with "CONFIDENTIAL," a company name, or "do not distribute" makes ownership and authorization clear if it's ever leaked or copied without permission.

💧 Subtle by design: Lower the opacity to keep the watermark unobtrusive without hurting readability.
🎨 Flexible styling: Adjust color, size and angle — from a large diagonal stamp to a small discreet mark.
🌐 Non-Latin text supported: A bundled font ensures non-Latin watermark text renders correctly.

📌 Where is a watermark useful?

Marking copyright — add "Confidential" or "Copyright" text to distributed material to discourage unauthorized copying.
Marking drafts — a "DRAFT" watermark clearly separates review copies from the final version.
Adding a company name — stamp your company name across proposals and reports for branding.
Tracing leaks — embed a recipient's name or distribution number so a leaked copy can be traced back.

✨ How to add one without it looking heavy-handed

Lowering opacity to 20–30% keeps the watermark visible without obscuring the text underneath.
A diagonal angle (45°) means the mark still shows up in copies or screenshots.
A light gray or muted red tone that contrasts with the body text usually works well.

🔒 Can I remove a watermark afterward?

A watermark added by this tool is baked directly into the saved PDF, so removing it later requires the original file. Keep a copy of your PDF before adding a watermark, just in case.

Frequently asked questions

Is my file uploaded to a server?: No. All processing happens inside your browser.
Can I use non-Latin text?: Yes. A bundled font ensures non-Latin text renders correctly.