Add Watermark
Add text watermarks to your PDF pages
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The tool loads in your browser — your files stay on your device.
Files are processed locally and never uploaded.
How to Add Watermark
Upload
Select or drag your file into the tool above.
Adjust
Choose the options you need for the job.
Download
Process runs instantly and your file downloads.
About Add Watermark
Protect your PDF documents with custom text watermarks. Add text like 'CONFIDENTIAL', 'DRAFT', or your company name across every page. Customize the watermark text, font size, rotation angle, opacity, and color to match your needs. Essential for protecting intellectual property, marking document status, and branding your PDF files.
Frequently asked questions
Yes. Add Watermark is 100% free with no hidden costs, no watermarks, and no daily limits. You can use it as many times as you like without creating an account.
Absolutely. Add Watermark processes your files directly in your browser — they are never uploaded to a server. Your documents never leave your device, which makes the tool completely private and secure.
No. Add Watermark works instantly in any modern web browser on Windows, macOS, Linux, Android, and iOS. There is nothing to install and no registration required.
Upload your file, choose any options the tool offers, and click the action button. Add Watermark processes everything instantly in your browser and lets you download the result right away.
There is no fixed size limit. Because add watermark runs on your device, the practical limit depends on your computer's available memory rather than a server quota.