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Add Watermark to PDF Online Free

Stamp text or image watermarks on every page of your PDF. Protect documents with custom logos, 'CONFIDENTIAL' labels, or branded designs in seconds.

PDF files only
Max 100MB per file

Your Documents Stay Protected

  • Files processed locally in your browser
  • No server uploads for watermarking
  • 100% private and secure processing

Why Add Watermarks to Your PDFs

Text Watermarks

Add custom text like 'CONFIDENTIAL', 'DRAFT', 'SAMPLE', or copyright notices with full font and color control

Logo / Image Watermarks

Stamp your company logo, signature, or brand image on every page. Supports PNG with transparency

Full Customization

Control position, opacity, size, color, and rotation. Choose diagonal, corner, or tile pattern placement

Batch Processing

Apply watermark to every page in your document automatically. Works with PDFs of any length

How to Add Watermark to PDF

Stamp watermarks on your PDF documents in 4 simple steps

1

Upload Your PDF

Drag and drop your PDF or click to browse. Works with files up to 100MB

2

Choose Watermark Type

Select text watermark for labels like 'CONFIDENTIAL' or image for your logo/signature

3

Customize Settings

Adjust position, opacity, size, and color. Preview how the watermark will appear on your PDF

4

Download Result

Click apply and download your watermarked PDF instantly. All pages are stamped automatically

Perfect for Every Industry

Protect and brand your documents with professional watermarks

Business Professionals

Brand proposals, contracts, and reports with your company logo. Mark drafts and confidential documents clearly

Legal & Compliance

Add 'CONFIDENTIAL', 'PRIVILEGED', or 'DRAFT' labels to sensitive legal documents and contracts

Creatives & Photographers

Protect portfolios, proofs, and creative assets with custom watermarks. Prevent unauthorized use

Ideal for:

  • Business owners protecting confidential proposals
  • Lawyers marking privileged documents
  • Photographers watermarking proof sheets
  • Anyone needing document branding

Professional PDF Watermarking

Our browser-based watermark tool ensures your documents remain protected while preserving the original PDF quality and formatting

Text and image watermarks with full customization

Diagonal, corner, center, or tile pattern placement

Adjustable opacity from subtle to prominent

Processed entirely in your browser for privacy

Works on All Devices

Add watermarks to PDFs from any device with a modern web browser

Mobile (iPhone & Android)

Quick watermarking on-the-go from your smartphone browser

Desktop (Mac & Windows)

Full-featured watermarking experience with preview on larger screens

Cross-Platform

Works in Chrome, Firefox, Safari, and Edge without any installation

Frequently Asked Questions

Common questions about adding watermarks to PDF files online

Simply upload your PDF to our tool, choose between text or image watermark, customize the position and opacity, and click 'Apply Watermark'. Your watermarked PDF downloads automatically. No software installation or account required.
Yes! Upload a PNG or JPG image of your logo. For best results, use a PNG with transparent background. Adjust the scale and opacity to make it subtle or prominent based on your needs.
Diagonal places one watermark at a 45-degree angle across the center of each page. Tile repeats the watermark in a pattern covering the entire page, which is more effective for preventing screenshot-based copying.
No, our watermark is added as an overlay and doesn't affect the underlying text. Your PDF remains fully searchable and text can still be selected and copied (unless you also protect the PDF).
No! All watermarking is done directly in your browser using client-side processing. Your PDF never leaves your device, ensuring complete privacy and security.
Once a watermark is embedded and saved, it becomes a permanent part of the PDF. We recommend keeping your original file as a backup before watermarking.

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Reduce file size while maintaining watermark quality

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Combine multiple PDFs before applying a consistent watermark