Add watermark to PDF
Protect your documents with custom text watermarks stamped across each page.
Select a PDF file to watermark
Drop your document here
100% Private • Files never leave your device
Quick Guide
How to add a text watermark to a PDF document?
1
1. Select PDF file
Choose the document you want to stamp or protect.
2
2. Configure watermark text & style
Type your text (e.g. CONFIDENTIAL, DRAFT), adjust opacity, color, and angle.
3
3. Download stamped PDF
Get your watermarked document ready for distribution.
🔒
True Privacy & GDPR
Your files are never transmitted to any server. Computation occurs entirely in your device RAM.
⚡
Blazing Fast Performance
No server queues and zero waiting for upload. Processing begins immediately as soon as you select a file.
🎉
Free Without Signups
All tools are 100% free with no daily caps and no subscription paywalls.
FAQ
Frequently Asked Questions
Can I customize the watermark text and opacity?
Yes! You can choose custom wording, modify font size, transparency, and diagonal slant.
Related Tools You May Need
All 100% free and in-browser