Add a watermark to PDF
Stamp your PDF with a text watermark like “DRAFT”, “COPY” or your name.
or drop them here
Your files never leave your device
How it works
- Select your PDF file.
- Set text, size, color, opacity and angle.
- Click “Add watermark” and download.
Frequently asked questions
Can the watermark be removed?
The watermark is written into the pages. Special PDF editors may still be able to remove it – it is a notice, not copy protection.
Are special characters supported?
Yes, you can use any text, including accents and special characters.
Are my files uploaded?
No. HowDoIPDF runs entirely in your browser. Your files are not sent to any server and stay on your device – ideal for confidential documents too.
Is “Add watermark” free?
Yes, completely free – no sign-up, no watermark and no file size limit.
Does it work on my phone?
Yes. The tool works in any modern browser on iPhone, iPad, Android, Windows, Mac and Linux – no app needed.
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