Add Watermark to PDF
Stamp a text watermark on every page of your PDF. Customize opacity, size and position.
How to use Add Watermark to PDF
Using Add Watermark to PDF is quick and simple. Upload your file using the upload zone above — drag and drop it directly or click to browse your files. The tool works entirely in your browser, so your files never leave your device and nothing is uploaded to any server. Once you have your file loaded, adjust the settings to your preference and click the process button. Your result will be ready to download in seconds. All processing happens client-side using modern browser APIs, ensuring complete privacy and fast performance even for large files.
Frequently Asked Questions
Can I customize the watermark text? +
Yes. You can enter any text, choose font size, opacity, rotation angle, and position on the page.
Will the watermark appear on every page? +
Yes, the watermark is applied to all pages by default.
Can I remove a watermark once added? +
Watermarks added with this tool are embedded into the PDF. They cannot be easily removed without specialized tools.
What color is the watermark? +
The default is a semi-transparent grey. You can adjust the opacity slider to make it more or less visible.
Are my files private? +
Yes. All processing happens in your browser with pdf-lib. No files are uploaded.
Your files never leave your device. All processing happens in your browser. No data is sent to any server.