How to add a watermark to a PDF in 3 easy steps
- 1
Upload your PDF
Drag and drop the file into the upload area or browse your device for it.
- 2
Write your watermark text
Type the label, for example “CONFIDENTIAL”. Adjust the size, opacity, and rotation with the sliders and controls.
- 3
Download the stamped PDF
Click “Add Watermark”. Every page receives the watermark and the file downloads to your device.
Why use the add watermark tool from Super Utility Hub?
Add a watermark to your PDF online for free. Stamp every page with text such as “CONFIDENTIAL”, “DRAFT”, “FOR REVIEW”, or your company name so recipients can never lose track of a document’s status or origin.
Fine-tune the watermark to your needs: choose the text, its size, opacity, and rotation angle. Place it diagonally across the page or straight in the center — a large, semi-transparent diagonal label is the classic way to protect drafts against misuse.
The watermark is applied locally in your browser. Your document never leaves your device, and the tool leaves no watermark of its own on the output. Free, unlimited, no sign-up.
- Processes everything in your browser — no upload servers involved
- Free forever with unlimited uses
- Works on Windows, macOS, Linux, Android and iOS
- No watermark or branding on your output, ever
Frequently asked questions
Can the watermark be removed by someone else?
A visual watermark discourages casual misuse but is not a security guarantee. For true protection, combine it with PDF password protection or use dedicated DRM.
Does the watermark affect the PDF quality?
No. The watermark is drawn as vector text on top of each page, so the original content stays fully sharp and selectable.
Can I watermark a scanned PDF?
Yes. Watermarks are applied to every page, including scanned ones, which is very common for marking client photos or legal scans.
Is there a watermark from the tool itself?
No. The output file contains only the watermark you add — nothing else.