PDF Add Watermark
Add text watermarks to PDF pages with customizable font size, color, opacity, and rotation angle.
Add Watermark to PDF
Upload a PDF file, configure your watermark settings, and download the watermarked document.
Select a PDF file to add a watermark
Watermark Settings
Watermark Preview
Upload a PDF file above, configure your watermark settings, and click "Apply Watermark" to add a text watermark to all pages.
How to Use
- Click "Choose PDF File" to select a PDF from your device
- Enter the watermark text (e.g., CONFIDENTIAL, DRAFT, DO NOT COPY)
- Adjust the font size, opacity, and rotation angle using the sliders
- Select a preset color or use the RGB sliders for a custom color
- Preview your watermark settings in the live preview panel
- Click "Apply Watermark" to add the watermark to all pages
- Download the watermarked PDF using the "Download Watermarked PDF" button
Frequently Asked Questions
Is it safe to add watermarks with this tool?
Yes, absolutely. All PDF processing happens entirely in your browser using client-side JavaScript. Your files are never uploaded to any server, which means your documents stay completely private and secure on your device.
Does the watermark appear on all pages?
Yes, the text watermark is applied to every page of your PDF document. The watermark is centered on each page with the font size, color, opacity, and rotation angle you configure.
Can I customize the watermark appearance?
Yes! You can customize the watermark text, font size (10-100px), opacity (0-100%), rotation angle (-90 to 90 degrees), and color. Choose from preset colors or use the RGB sliders for a custom color.
Is this tool free to use?
Yes! All tools on ToolsKeeper are completely free to use with no limitations or sign-up required. There are no file size limits or restrictions on the number of PDFs you can watermark.