Add Watermark
Stamp custom text like "CONFIDENTIAL" or "DRAFT" across your document to protect your intellectual property.
About this tool
Add Watermarks to Your PDF — Free & Private
Sending a draft for review? Sharing a proposal you want to protect? Stamp text like "CONFIDENTIAL," "DRAFT," or your company name across every page. The watermark is semi-transparent so the content stays readable.
Custom Text
Type any text you want — a company name, a status label, a date. You control the wording completely.
Full Control
Adjust the size, angle, color, and transparency. See a live preview before saving so it looks exactly right.
Completely Private
Your document never leaves your computer. No uploads, no servers — the watermark is stamped right here in your browser.
How to add a watermark
- 1
Open your PDF
Click "Select PDF File" or drag your document onto the page.
- 2
Type your watermark text
Enter whatever you'd like stamped on every page. Adjust the size, angle, color, and opacity using the sliders. A live preview updates as you change settings.
- 3
Save the watermarked PDF
Click save and your watermarked document downloads instantly.
Frequently asked questions
Can I control how visible the watermark is?
Yes. There's an opacity slider that goes from barely visible to fully solid. Most people set it around 20–40% so the text is clearly visible but doesn't block the content underneath.
Can someone remove my watermark?
The watermark is stamped directly into the page content, not added as a removable annotation. A determined user with professional tools could theoretically edit it, but it can't be removed with a simple click like an annotation can.
Is my file uploaded to a server?
No. Everything happens in your browser. Your document never leaves your device.
Is it free?
Completely free — no account, no watermarks from us added to your document, no limits.