PDF Watermark
Add text watermarks to your PDF documents. Customize text, color, opacity, and position. All processing happens locally in your browser.
100% Your data never leaves your browser
All processing happens locally in your browser.
Drag and drop a PDF file here, or click to browse
PDF files only
All processing happens locally in your browser.
How to Add Watermark to PDF?
Upload PDF
Drag and drop your PDF file into the upload area, or click to browse. Preview your document before adding the watermark.
Customize Watermark
Enter your text (e.g., "CONFIDENTIAL", "DRAFT"). Adjust font size, opacity, rotation, color, and position to your preference.
Download
Preview your watermarked PDF in real-time, then download. The watermark is applied to all pages instantly.
Why Use BrowserKits for PDF Watermarking?
100% Client-Side Processing
Your document never leaves your browser. Perfect for confidential contracts, legal documents, and sensitive business files.
Copyright Protection
Add ownership marks to protect your intellectual property. Deter unauthorized distribution with visible watermarks.
Live Preview
See exactly how your watermark looks before downloading. Adjust settings and preview changes in real-time.
Completely Free
No subscriptions, no watermarks on our watermarks, no limits. Use it as much as you need.
Use Cases
Branding
Add your company logo or name to documents for consistent brand identity across all materials.
Copyright Protection
Mark your original work with ownership watermarks to deter unauthorized copying or distribution.
Draft Marking
Clearly label documents as DRAFT, CONFIDENTIAL, or SAMPLE to prevent confusion with final versions.
How It Works: Client-Side Processing
Your privacy is our priority. Here's why our approach is different:
Text & Image Watermarks
Add custom text watermarks with full font and color control. Perfect for branding and document marking.
Precise Position Control
Place watermarks in corners, center, or tile across pages. Rotate for diagonal placement like professional stamps.
Adjustable Opacity
Fine-tune watermark transparency to balance visibility with document readability. Preview changes in real-time.
Frequently Asked Questions
Is my document secure when adding watermarks?
Absolutely. BrowserKits processes everything locally in your browser. Your PDF is never uploaded to any server, making this the safest option for watermarking confidential documents, contracts, and proprietary materials.
What watermark positions are available?
You can place watermarks in any corner, centered, or use "tile" mode to repeat the watermark across the entire page. Combine with rotation for diagonal watermarks commonly used for "DRAFT" or "CONFIDENTIAL" stamps.
Can I watermark all pages at once?
Yes! The watermark is automatically applied to every page in your PDF. This ensures consistent branding or security marking throughout your entire document with a single click.