Watermark PDF
Add text watermarks to PDF pages
What is PDF watermarking?
PDF watermarking adds text overlaid diagonally or horizontally across every page of a PDF document. Watermarks are used to mark draft documents, identify confidential files, add copyright notices, or brand documents with a company name.
The watermark text, position, opacity, font size, and color are all configurable. The result is a standard PDF that opens in any PDF reader, with the watermark embedded as permanent page content.
How to use Watermark PDF
Upload your PDF
Click the upload area or drag and drop your PDF file.
Configure the watermark
Enter your watermark text and adjust position (diagonal or horizontal), opacity, font size, and color.
Click Add Watermark
The watermark is applied to every page in your browser instantly.
Download the watermarked PDF
Click Download to save the result.
Frequently asked questions
Can I remove a watermark added with this tool?
Watermarks added by this tool are embedded as page content in the PDF. They can be removed using PDF editing software like Adobe Acrobat, but standard PDF readers cannot remove them.
Will the watermark appear on all pages?
Yes. The watermark is applied uniformly to every page in the document.
Can I adjust the watermark opacity?
Yes. You can set opacity from very faint (good for background identification) to fully opaque. A lighter watermark lets the document content remain clearly readable.
Is my PDF uploaded to a server?
No. Watermarks are applied entirely in your browser using JavaScript. Your file is never sent to any server.