FREE BROWSER TOOL
Watermark PDF
Place a diagonal text watermark across every PDF page and control its size and opacity.
- No sign-up
- No file uploads
- No added watermark
The source stays unchanged and the output contains the visible watermark.
How it works
- 1
Choose one PDF.
- 2
Enter watermark text, size, and opacity.
- 3
Create and download the watermarked copy.
No file uploads
Processed on this device
Processing happens in your browser. Your selected files are not uploaded to Toolavio.
Formats and limits
The same plain-text watermark is centered on every page; images and per-page placement are not supported.
Frequently asked questions
No file uploads
Processing happens in your browser. Your selected files are not uploaded to Toolavio.
No sign-up
Pick the exact job, see only the controls that matter, and save the result to your device.
What result will I download?
The source stays unchanged and the output contains the visible watermark.
What should I know before processing?
The same plain-text watermark is centered on every page; images and per-page placement are not supported.