PDF Tools
Add Watermark to PDF — Free Online PDF Watermark Tool
Add a text watermark to any PDF for free. Customize font size, opacity, color, rotation, and position. No sign-up, no file uploads to servers.
FAQ
How do I add a watermark to my PDF?
Upload your PDF, enter your watermark text, adjust the font size, opacity, color, and position, then click 'Apply Watermark'. Download the watermarked document.
Can I customize the watermark appearance?
Yes. You can customize the text, font size (12-120px), opacity (5-100%), color, rotation angle, and position (center or diagonal).
Is the watermark applied to all pages?
Yes. The watermark is applied to every page of the PDF with the same settings.
Are my files uploaded to a server?
No. All processing happens entirely in your browser. Your PDF files never leave your device.
Can I remove the watermark later?
The watermark is embedded directly into the PDF. To get the original, use the source file you uploaded (which is never modified).