Watermark PDF
Type text and apply to all pages – diagonal or footer. All in your browser, no file upload.
Drop a PDF here
or click to choose
0 bytes sent — this file never leaves your computer
In doubt? Open DevTools (F12) → Network tab: no upload occurs.
How it works
1
Upload PDF
One file at a time.
2
Type the text
Style & color.
3
Download
Watermark on every page.
Related tools
Frequently asked questions
How to add a watermark to a PDF for free?
Upload the PDF, type the watermark text, adjust position and transparency, and download the stamped file. Adding a watermark is free, no sign-up, and 100% in the browser.
Can I apply the watermark to all pages at once?
Yes. The watermark is applied uniformly to all PDF pages in one click. Nothing is sent to a server — the watermark is inserted locally in your browser.
Is it safe to add a watermark to a PDF online?
It's completely safe: your document is not sent anywhere, the watermark is written in the browser itself. This way you protect contracts and exams with a free watermark and no sign-up.