PDF Tools
PDF Watermark
Add a text watermark to every page of a PDF using client-side processing.
Private by default: supported files are processed in your browser whenever possible.
18%
48px
How to use it
- 1Upload a PDF.
- 2Enter watermark text.
- 3Choose opacity and size.
- 4Download the watermarked PDF.
Features
PDF upload
Custom watermark text
Opacity control
Font size control
Download PDF
PDF Watermark FAQ
Clear answers before you resize, crop, compress, and download.
Are my files uploaded to a server?+
Whenever possible, Nova1st processes files in your browser. Advanced tools that need secure server-side processing are clearly marked.
Does this tool work on mobile?+
Yes. The tool is responsive and works in modern desktop and mobile browsers.
Can I download the final file?+
Yes. Active tools generate a downloadable result directly from your browser.