PDF Watermark Tool
Add text or image watermarks to your PDF pages instantly. No upload needed — processed securely in your browser.
Upload a PDF to see a live preview with your watermark settings.
How to Use the PDF Watermark Tool
Upload Your PDF
Drag and drop your PDF or click the upload zone to select a file from your device.
Customize Watermark
Choose between a text or image watermark. Set font, color, size, position, opacity, and rotation.
Apply & Download
Click Apply Watermark to process all pages locally in your browser, then download the result instantly.
What is a PDF Watermark?
A PDF watermark is a semi-transparent text or image overlay placed on PDF pages to indicate authorship, classification, or intended use. Common watermarks include "CONFIDENTIAL," "DRAFT," "DO NOT COPY," or a company logo.
Why Add Watermarks to PDF Files?
Watermarking is used across industries for branding, copyright protection, and document classification. Legal firms use "DRAFT" or "PRIVILEGED," businesses use logos for branding, and artists add copyright notices to protect creative work.
Text vs Image Watermarks
Text watermarks are the most common choice — they are lightweight, fully customizable, and easy to apply. You can change the font, size, color, and orientation.
Image watermarks (logos, signatures) are ideal for branding. Upload a PNG or JPG and control its scale and transparency for a professional look.
Best Practices for Watermark Placement
- Use center diagonal placement for maximum protection — it covers the main content area.
- Set opacity between 20–50% so the document remains readable.
- For logos, scale to around 20–35% of page width and place in a corner.
- Use high-contrast color (red, grey) relative to the document background.
Features
Text Watermark
Custom text with font, size, and color control. 6 built-in fonts available.
Image Watermark
Upload a PNG or JPG logo and apply it with adjustable scale and opacity.
Position Control
9-point grid for precise watermark placement across every page.
Opacity Adjustment
Slider from 5% to 100% for perfect transparency control.
Rotation
Rotate from -180° to 180° — ideal for diagonal watermarks.
Multi-Page Support
Watermark applied to all pages automatically. Preview each page before downloading.
100% Client-Side
All processing happens in your browser. Your files are never uploaded to any server.
Fast & Free
No account needed, no file size fees — instant results for any PDF.
Frequently Asked Questions
How do I add a watermark to a PDF?
Upload your PDF, choose Text or Image watermark, adjust the settings, and click "Apply Watermark to All Pages." The preview updates live. Download when ready.
Is this tool free?
Yes. The PDF Watermark Tool by ToolsGoat is completely free to use with no limits on file size or number of uses.
Can I add an image watermark?
Yes. Click the "Image" tab, upload a PNG or JPG file (e.g., a company logo), then adjust opacity, scale, and position before applying.
Can I adjust the transparency?
Yes. The Opacity slider lets you control watermark transparency from 5% (nearly invisible) to 100% (fully opaque).
Is my PDF file secure?
Absolutely. All processing happens locally in your browser using JavaScript. Your files are never sent to our servers.
Does it watermark all pages?
Yes. Clicking Apply Watermark applies the watermark to every page of your PDF document automatically.