100% Browser-Based • No Upload • Free

Free PDF Watermark Protect Your Documents

Add text or image watermarks to your PDF documents — "CONFIDENTIAL", "DRAFT", your logo, or any custom text. Processed entirely in your browser.

Add Watermark Free All Tools
No sign-up required to try • No files uploaded • Free forever

How It Works

1
Select or drop your file
2
Processed in your browser — nothing uploaded
3
Download the result — done!
Key Features

Why Use UniTrack PDF Watermark

Protect your documents with professional watermarks — privately and instantly.

Text Watermarks

Add custom text like "CONFIDENTIAL", "DRAFT", or your company name. Control font, size, color, and opacity.

Image Watermarks

Use your logo or any image as a watermark. Position it anywhere on the page with adjustable transparency.

Full Customization

Control position, rotation, opacity, and size. Apply to all pages or specific page ranges.

Your Data Never Leaves Your Browser

Unlike other online tools, we don't upload your files to our servers. Everything is processed using JavaScript directly in your browser. When you close the tab, your data is gone. Zero tracking, zero risk.

0
Server uploads
0
Data stored
0
Tracking
FAQ

Frequently Asked Questions

Yes! Upload any PNG, JPG, or WebP image to use as a watermark. You can control its size, position, opacity, and rotation on the page.

Yes, you can choose to watermark all pages, odd pages, even pages, or specify a custom page range.

The watermark is embedded in the PDF. For text watermarks with high opacity, they serve as a visible deterrent. The original unwatermarked PDF remains on your device.

Watermark Your PDFs for Free

Add professional watermarks to protect your documents — no upload, no signup, no limits.

Add Watermark Now Browse All Tools
No sign-up required 100% browser-based Free forever