How do I add a watermark to a PDF?

Choose your PDF, type your watermark text (like CONFIDENTIAL or DRAFT), adjust color, size, opacity and angle, then click Add Watermark. Every page gets the stamp; the file downloads instantly.

Can I make the watermark transparent so text stays readable?

Yes — the opacity slider controls exactly how faint the watermark appears. Most people use 15-30% opacity so the underlying text remains easy to read.

Can I watermark only some pages?

Currently the watermark applies to every page, which is the standard behavior for marking drafts or confidential documents throughout.

Is the watermark removable by whoever receives the file?

It is a real layer added to the page and requires PDF editing software to remove — casual viewing and printing show it normally, same as watermarks from paid PDF tools.

Does this upload my document?

No. The watermark is drawn directly onto your PDF in the browser. Nothing is sent to a server.

📄 PDF Guides

How to Add a Watermark to a PDF

Updated July 2026 · Works on any device

Quick answer: to watermark a PDF for free, open our Add Watermark tool, type your text (like CONFIDENTIAL or DRAFT), adjust color/opacity/angle, and click Add Watermark. Runs in your browser, no upload.

How to Add a Watermark to Every Page

Open the Watermark PDF tool.
Choose your PDF.
Type the watermark text.
Set color, opacity (15-30% keeps content readable) and angle (45° diagonal is standard).
Click Add Watermark — every page gets the stamp instantly.

Choosing the Right Opacity

Too solid and the watermark obscures your content; too faint and it’s easy to miss or crop out. 15-30% opacity is the sweet spot used by most professional documents — visible enough to signal "draft" or "confidential" without blocking the text underneath.

Watermark Questions

Can I watermark just one page?

The tool applies the watermark to every page — the standard behavior for marking an entire document.

Is my file uploaded?

No, watermarking happens entirely client-side.

Can I use my company name as a watermark?

Yes — type any text you want, including a company or project name.

✨ Try it now — free & private

Stamp text like "CONFIDENTIAL", "DRAFT" or your company name diagonally across every page. Control color, size, opacity and angle. In-browser only — no upload.

💧 Open Add Watermark to PDF →