Add Watermark to PDF Free

Stamp every page of your PDF with custom text — Confidential, Draft, Copy, or anything you need. Free, private, and works on any device.

🔒 Files never leave your device
📁

Drop PDF file here or click to browse

Select a PDF file (max 10 MB each)

Get notified about new PDF tools

AI-powered features coming soon — summarize, chat with, and extract data from PDFs.

Frequently Asked Questions

Can I use any text as a watermark?

Yes. Choose from presets like Confidential, Draft, Copy, and Sample — or type any custom text up to 50 characters. The watermark appears diagonally across every page.

Can I adjust the watermark appearance?

You can control font size (20-100px) and opacity (5-50%). This lets you make the watermark prominent enough to be visible but transparent enough not to obscure the document content.

Does the watermark get embedded permanently?

Yes. The watermark is drawn directly onto each page of the PDF. It cannot be easily removed, which is the point — it marks the document as confidential, a draft, or a copy.

Get notified about new PDF tools

AI-powered features coming soon — summarize, chat with, and extract data from PDFs.