PDF Watermark

What does this tool do?

PDF Watermark is a powerful, professional-grade browser-based tool that lets you add text or image watermarks directly into your PDF documents. Whether you need to brand documents with a company logo, mark files with status indicators, add copyright notices, or insert digital stamps — this tool handles it all with precision and ease.

Built with a privacy-first approach, all processing happens locally in your browser. Your PDFs never leave your device — no uploads to any server, no data collection, and no internet dependency after the initial page load. The tool uses advanced browser technologies like pdf-lib and PDF.js to render, manipulate, and save PDFs with pixel-perfect accuracy while maintaining original document quality.

Key capabilities include:

• Image Watermarks — Upload PNG or JPG images (PNG supports transparency) and place them anywhere on your PDF pages.
• Text Watermarks — Create custom text watermarks with 14 color options and 7 professional fonts at 96px size.
• Precise Positioning — Drag and drop watermarks to any position on the page using the interactive preview.
• Rotation & Opacity — Rotate watermarks from -180° to 180° and control transparency from 0% to 100%.
• Page Selection — Use the visual page selection grid to apply watermarks to specific pages or all pages.
• Instant Download — Download the watermarked PDF instantly — no watermarks on your output file.

The result is a powerful, privacy-first watermarking tool that helps you:

• Protect intellectual property — Add copyright notices, logos, and ownership marks.
• Mark document status — Add "Draft," "Confidential," "Final," or "Review" stamps.
• Brand documents — Add company logos, social media handles, or website URLs.
• Prepare legal documents — Add "Privileged," "Attorney-Client," or "Evidence" markings.
• Secure sensitive files — Add "Confidential" or "Internal Use Only" watermarks.

Why This Tool is Better Than Others

• 🔒 100% Private & Secure — Unlike other tools that upload your PDFs to servers, everything happens locally in your browser. Your documents never leave your computer.
• ⚡ Blazing Fast Performance — No waiting for uploads to remote servers. No queue times. Instant watermark application and download.
• 📁 No File Size Limits — Most PDF tools cap you at 10-50MB. We have ZERO limits — work with any PDF size, from 1KB to 10GB+.
• 🆓 Completely Free — Forever — No premium tiers. No daily limits. No watermarks on output. No sign-up required.
• 🎨 14 Text Colors + 7 Fonts — Customize your text watermarks with a wide range of colors and professional fonts.
• 🔄 Precise Rotation with Oriented Cursors — Resize handles and cursors rotate to match the bounding box orientation for intuitive interaction.
• 💧 Adjustable Transparency — Control opacity from 0% to 100% for subtle background marks or bold overlays.
• 📄 Visual Page Selection — Click to select exactly which pages get watermarked using a visual grid.
• 📱 Works Anywhere — No Installation — Use it on any device with a browser. No software to download.

Comparison With Other PDF Tools

Who should use it?

Anyone who needs to add watermarks to PDFs quickly, privately, and professionally.

How to Use (Step-by-Step)

1. Upload PDF — Drag & drop your PDF or click to browse.
2. Add Watermark — Choose Image or Text tab, upload an image or enter text.
3. Select Pages — Use the grid to choose which pages get the watermark.
4. Position — Drag the watermark on the preview to reposition it.
5. Adjust — Use the rotation and opacity sliders to fine-tune appearance.
6. Add More — You can add multiple watermarks to the same document.
7. Download — Click "Apply Watermarks & Download PDF" to save your watermarked file.

When to use it?

• Branding — Add company logos to proposals, reports, and presentations.
• Legal Documents — Mark contracts, agreements, and evidence with confidentiality stamps.
• Photography — Protect creative work with copyright watermarks.
• Academic Papers — Add school names, course codes, or author details.
• Corporate Communications — Mark internal documents with "Confidential" or "Draft."

Use Cases (Real-World Examples)

• Student: Watermarks lecture notes and scanned assignments with name and student ID to prevent unauthorized sharing.
• Teacher: Adds school logo and "For Educational Use Only" stamps on digital worksheets and exam papers.
• Graphic Designer: Places "Proof" or "Draft" watermarks on client mockups to protect intellectual property before final delivery.
• Web Developer: Brands website design wireframes and UI mockups with company logos for client presentations.
• Photographer: Adds copyright watermark and contact details to portfolio PDFs to protect creative work.
• E-commerce Seller: Marks product catalogs and invoices with store branding and "Confidential" watermarks.

Your privacy is protected — nothing is uploaded to any server. All processing happens locally on your device. 100% free, no watermarks on output, no sign-ups.