Watermark PDF
Add a diagonal text watermark to every page of a PDF. Free, private, runs entirely in your browser.
Click to select a PDF file, or drag and drop
Your file never leaves your browserOpacity: 25%
How to Watermark a PDF
- Upload the PDF you want to watermark.
- Enter your watermark text (e.g. "CONFIDENTIAL" or "DRAFT") and adjust the opacity.
- Click Add Watermark to download the watermarked PDF.
Example
Watermarking a contract draft with "DRAFT" at 25% opacity stamps the word diagonally across every page, clearly marking it as not-yet-final without obscuring the underlying text.
Common Use Cases
- Marking draft documents before they're finalized.
- Labeling confidential or internal-only material.
- Branding shared documents with a company name.
FAQ
- Can I remove a watermark added this way? Not with this tool — it's meant to be a visible, permanent mark on the output file.
- Is my file uploaded anywhere? No — watermarking happens entirely in your browser.