Add Watermark to PDF Online Free - Text Watermark Tool
2 usesDrop PDF files here or click to browse
Select one or more PDF files
Tips for PDF Watermarks
Custom Text
Enter any text for your watermark - company name, CONFIDENTIAL, DRAFT, or any custom message.
Full Customization
Adjust font size, color, opacity, and rotation angle to get the perfect watermark appearance.
Opacity Control
Use low opacity (20-30%) for subtle background watermarks, or higher values for prominent stamps.
100% Private
All processing happens in your browser. Your PDF never leaves your device.
Frequently Asked Questions
Can I adjust the watermark transparency?
Yes! Use the opacity slider to set transparency from 5% (nearly invisible) to 100% (fully opaque). 20-30% is recommended for document watermarks.
What fonts are supported?
The tool uses Helvetica, which is a standard PDF font available across all platforms and PDF viewers.
Will the watermark appear on every page?
Yes, the watermark is applied to all pages in the PDF document with identical settings.
Does this online PDF watermark tool upload my confidential documents to a server, or is it private?
Your privacy is fully protected because this PDF watermark tool processes documents entirely within your web browser. No part of your confidential PDF file is ever uploaded to a server for watermarking. This secure, browser-based approach ensures your sensitive information remains on your device, offering complete peace of mind while adding custom text watermarks to your files.
Can I add an image or logo as a watermark to my PDF with this online tool?
No, this specific online tool is designed exclusively for adding **text watermarks** to your PDF documents. You can customize the watermark text, font size, color, opacity, and angle. If you need to embed a company logo or an image as a watermark, you would require a different specialized PDF editor that supports graphic watermarks. This tool focuses on simple, free, and secure text watermarking right in your browser.
How to Add a Watermark
- Upload your PDF file by clicking the upload area or dragging and dropping.
- Enter your watermark text and customize font size, color, opacity, and angle.
- Click 'Apply Watermark' to add the watermark to all pages.
- Download the watermarked PDF file.
Related Tools
All files are processed locally in your browser. Nothing is uploaded to any server.