Free Online PDF Watermark Tool – Add Text/Image Watermarks Instantly
Protect and brand your PDF documents by adding customizable watermarks. Our secure, browser-based tool works on any device – no registration required!
✔ Works on Chrome, Firefox, Edge, Safari and mobile browsers. For best performance, use the latest browser version.
Your Watermarked PDF is Ready
Why Choose Our PDF Watermark Tool?
Complete Privacy
Your files never leave your browser. We don’t store or access your documents, ensuring maximum confidentiality for sensitive files.
Professional Results
Create clean, properly positioned watermarks without compromising your document quality or layout.
No Limitations
Unlike other tools, we don’t restrict page counts, file sizes, or add our own watermarks to your documents.
Universal Compatibility
Works with all modern browsers on Windows, Mac, Linux, iOS and Android devices.
What does PDF Watermark Tool do?
This tool allows you to add professional watermarks to your PDF documents. You can add either text watermarks (like “Draft” or “Confidential”) or image watermarks (like logos) to every page of your PDF. The watermark can be positioned anywhere on the page and adjusted for opacity to make it more or less visible.
How to use PDF Watermark Tool?
- Upload Your PDF: Click the “Select PDF File” button or drag and drop your file into the upload area.
- Choose Watermark Type: Select whether you want to add a text or image watermark.
- Customize Watermark: For text watermarks, enter your text and choose color/size. For image watermarks, upload your logo/image.
- Set Position & Opacity: Choose where the watermark should appear and how transparent it should be.
- Select Pages: Choose which pages to watermark (or leave as “all” for every page).
- Preview & Apply: Preview how the watermark will look, then apply it to your PDF.
- Download: Get your watermarked PDF with one click.
Features of PDF Watermark Tool
- Text or Image Watermarks: Add either text or logo watermarks to your PDFs
- Customizable Appearance: Control font, size, color, and opacity of watermarks
- Precise Positioning: Place your watermark in any of 9 standard positions
- Page Selection: Watermark all pages or just specific pages
- Client-Side Processing: Your PDF is processed in your browser for maximum privacy
- No Watermarks: We never add our own watermarks to your documents
Application of PDF Watermark Tool
- Document Protection: Add “Confidential” or “Draft” watermarks to sensitive documents
- Branding: Add your company logo to PDF reports or presentations
- Copyright Notices: Protect your intellectual property with copyright watermarks
- Document Status: Mark documents as “Approved”, “For Review”, etc.
- Professional Presentations: Add subtle branding to all pages of your PDF
Common Use Cases with Examples
1. Document Protection
Add “CONFIDENTIAL” or “DRAFT” watermarks diagonally across pages to prevent unauthorized sharing of sensitive documents.
2. Branding Documents
Subtly place your company logo in the footer of all pages when sharing reports or presentations with clients.
3. Copyright Protection
Add semi-transparent copyright notices to protect your intellectual property when sharing digital content.
Privacy & Security Guarantee
We take your document security seriously. Here’s how we protect your data:
- No Server Uploads: All processing happens in your browser – files never touch our servers
- No Tracking: We don’t use cookies or tracking scripts that monitor your document content
- Automatic Cleanup: Your files are automatically deleted when you close the browser tab
- Transparent Code: Our tool uses open-source libraries with publicly audited code
For maximum security, we recommend processing sensitive documents in a private/incognito browser window.
Advanced Watermarking Techniques
1. Multi-Line Watermarks
Create professional-looking watermarks by separating text with line breaks (press Enter). Example:
COMPANY NAME
INTERNAL USE ONLY
2. Optimal Opacity Settings
For text watermarks: 20-40% opacity
For image watermarks: 10-30% opacity
These ranges ensure visibility without obscuring content.
3. Batch Processing
Need to watermark multiple files? Combine them into one PDF first, then apply your watermark to all pages at once.
Frequently Asked Questions
Is this tool really free to use?
Yes! Our PDF watermark tool is completely free with no hidden charges or watermarks added to your documents.
What happens to my files after processing?
Nothing remains on our servers. Your PDF is processed entirely in your browser and deleted immediately after you close the page.
Can I watermark scanned PDFs?
Yes, but the results depend on the scan quality. For best results with scanned documents, use higher contrast watermarks.
What’s the maximum file size I can process?
There’s no fixed limit, but very large files may take longer to process depending on your device’s memory.
Troubleshooting Guide
Watermark isn’t appearing
Solution: Check your opacity setting isn’t too low. Try increasing to at least 20% and ensure you’ve clicked “Apply Watermark”.
PDF won’t load
Solution: Try a different browser or check if the PDF is password protected (our tool can’t process encrypted files).
Watermark position is wrong
Solution: Use our preview feature to test different positions before applying to the entire document.
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