PDF Watermark
Add a custom text watermark to every page of a PDF. Adjust position, opacity and color — runs entirely in your browser.
What is a PDF Watermark?
A PDF watermark is text or an image overlaid on every page of a PDF to indicate ownership, confidentiality, or draft status. Common watermarks include CONFIDENTIAL, DRAFT, or a company logo. Watermarks help protect intellectual property and communicate the document status at a glance.
This tool adds a text watermark to every page of a PDF in your browser — no upload required.
How to add a watermark to a PDF online
- Upload your PDF file.
- Enter the watermark text, font size, opacity, and rotation angle.
- Click Add Watermark and download the watermarked PDF.
Frequently Asked Questions
Can I set the opacity of the watermark?
Yes. Opacity controls how transparent the watermark appears — 100% is fully opaque (solid), 20-30% is a typical subtle background watermark that does not obscure the content.
What rotation angle should I use for a diagonal watermark?
A rotation of 45 degrees is the classic diagonal watermark style. Rotate at -45 degrees or any other angle to suit your layout.
Can I remove a watermark that has been embedded in a PDF?
Embedded watermarks are difficult to remove cleanly, especially if they are fused with the page content. Vector watermarks may be selectable in a PDF editor; rasterised watermarks are essentially impossible to remove perfectly.
Is there a limit on how many pages can be watermarked?
No. The tool processes all pages of the PDF. Very long PDFs may take a moment on slower devices.