Add Watermark to PDF
Add custom text watermarks to your PDF pages. Choose your preferred color, opacity, font size and position, then download your watermarked document.
PDF format · Maximum 50 MB
PDF processing happens in your browser. Your document is not uploaded to a conversion server by this tool.
Add Watermark to PDF Online
Add a text watermark to your PDF documents with SmartTools. Watermarks can help identify documents as confidential, drafts, samples or copies. Customize the text, color, transparency, size and placement to suit your document.
How to Add a Watermark to PDF
- Select a PDF file from your computer.
- Enter your watermark text.
- Choose the watermark color.
- Select diagonal, center, top or bottom position.
- Adjust opacity and font size.
- Click Add Watermark & Download.
Watermark Features
- Custom watermark text up to 100 characters.
- Custom text color.
- Adjustable opacity from 5% to 100%.
- Font size from 12 to 72 points.
- Four watermark placement options.
- Browser-based PDF processing.
Frequently Asked Questions
1. Can I add a text watermark to every PDF page?
Yes. The current tool adds your selected watermark to every page of the PDF.
2. Can I customize the watermark color?
Yes. Use the color picker to select your preferred text color.
3. Can I make the watermark transparent?
Yes. Adjust the opacity slider from 5% to 100%.
4. Where can I place the watermark?
Choose diagonal, center, top or bottom placement.
5. Are my PDF files uploaded to a server?
No. This tool uses pdf-lib to process your document directly in your browser.
6. What is the maximum PDF file size?
The current maximum supported file size is 50 MB.
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