Add Watermark to PDF
Stamp a custom text watermark on every page of your PDF.
Drop your PDF here or click to browse
PDF files up to 20 MB
How to Add a Watermark to a PDF
Upload PDF
Select or drag your PDF file.
Customize
Set text, opacity, angle, and color.
Download
Click Add Watermark and save.
About PDF Watermarking
PDF watermarks are used to indicate ownership, confidentiality, or draft status of documents. Our tool places a semi-transparent text watermark diagonally across every page of your PDF — making it visible but not obstructing the content.
You can fully customize the watermark: set the text to anything from "CONFIDENTIAL" or "DRAFT" to your company name. Adjust opacity for subtle or prominent stamps. Change the angle for diagonal or horizontal placement. Pick any font size and color that suits your brand.
All processing is done server-side with pdf-lib, a high-fidelity PDF manipulation library. The resulting file is fully compliant with the PDF standard and can be opened in any PDF reader.
You may also find our Protect PDF, Sign PDF, and PDF Metadata Editor helpful.
Frequently Asked Questions
Can I add a watermark to a single page only?
Currently the watermark is applied to all pages. Page-specific watermarks will be available in a future update.
Can I use an image as a watermark?
This tool currently supports text watermarks. Image watermark support is planned.
Will the watermark be removable?
The watermark is embedded in the PDF content. Removing it would require advanced PDF editing software.
Is there a page limit?
No page limit. The tool supports any number of pages up to the 20 MB file size cap.
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