Watermark PDF
Add text or image watermarks to a PDF.
This tool runs entirely in your browser. Your data never leaves your device — nothing is uploaded to our servers.
About Watermark PDF
A watermark communicates intent — DRAFT, CONFIDENTIAL, a company name — and it is worth being honest that it does not enforce anything. Text drawn onto a page can be removed by anyone with the right tool, so a watermark deters casual misuse and labels provenance; it is not a security control. This adds text or an image across your pages locally in the browser, with control over placement and opacity.
When to use Watermark PDF
Marking drafts so they aren't mistaken for final
A visible DRAFT across every page prevents an in-progress version circulating as though it were approved.
Labelling confidential material
A CONFIDENTIAL stamp sets expectations and shows intent, which matters for internal policy even though it enforces nothing technically.
Branding documents you send out
Proposals and reports carrying your name or logo on each page, so a single forwarded page still identifies its source.
Limitations worth knowing
- A watermark is not protection. It can be removed with PDF editing tools, so never rely on it to secure a document.
- Watermarks are drawn on top of existing content and can obscure text if opacity is set too high.
- It is applied uniformly; per-page watermark text is not supported.
- Adding a watermark to a scanned PDF increases file size, since it adds a content layer over each page image.
How to watermark pdf
- 1
Load the PDF you want to mark.
- 2
Enter your watermark text or choose an image.
- 3
Set position, rotation and opacity — around 20–30% is usually readable without obscuring the content.
- 4
Apply and download the watermarked file.
Frequently asked questions
Can someone remove my watermark?+
Yes — and you should design around that. A watermark is page content, and anyone with a PDF editor can strip or cover it. It signals status and ownership, and deters casual reuse. If a document genuinely must not be copied or altered, you need encryption and access controls, not a watermark.
What opacity should I use?+
Roughly 20–30% is the usual sweet spot: clearly visible without making the underlying text hard to read. Go higher and you hurt legibility; go much lower and it stops registering as a label at all. Check a dense page rather than a mostly-empty one.
Is my document uploaded to apply the watermark?+
No. The watermark is drawn in your browser and the file never leaves your device — which is the sensible arrangement given that the documents people mark CONFIDENTIAL are, definitionally, the ones they least want on someone else's server.
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