Add Watermark to PDF Online Free
Protect documents with CONFIDENTIAL, DRAFT, or custom watermarks
No signup • No watermark • 100% Private • Completely Free
See the Result
Add Watermark to PDF
Protect your documents with text watermarks
Upload Your PDF
Select a PDF document to add watermarks
Why Use Our Free PDF Watermark Tool?
PDF Watermark Privacy
Add watermarks to PDFs using pdf-lib locally. Your documents and watermark text stay on your device during processing.
Custom Watermark Control
Add text watermarks with opacity, positioning, rotation, and color control. Perfect for protecting documents, marking drafts, or adding copyright notices.
Unlimited PDF Watermarking
Watermark entire document libraries without restrictions. No limits on page count, file size, or number of watermarked PDFs per day.
Direct Watermark Access
Start watermarking PDFs immediately. No account creation, no email verification - just upload and protect.
How to Add Watermark to PDF
Upload Your PDF Document
Select the PDF file you want to add a watermark to.
Customize Watermark Settings
Choose text (CONFIDENTIAL, DRAFT, etc.), adjust opacity, rotation, and color.
Download Protected PDF
Click "Add Watermark" and download your watermarked document instantly.
Frequently Asked Questions
Is this PDF watermark tool really free?
Yes, completely free. No hidden fees, no subscriptions, no credit card required.
Do I need to create an account?
No. Start immediately without signup or email verification.
Are my PDFs uploaded to your servers?
No. All processing happens in your browser. Files never leave your device.
Can I add a watermark to specific pages only?
Yes. Choose "Specific pages" and enter page numbers like "1,3,5-7" to watermark only those pages.
Can I remove the watermark later?
No. Once watermarked and saved, the text is permanently embedded in the PDF. Keep a backup of your original file.
What text can I use as a watermark?
Any text you want. Common options include CONFIDENTIAL, DRAFT, COPY, or your company name.
Will watermarking increase PDF file size?
Slightly. Text watermarks add minimal size increase, typically less than 1% of the original file size.
💡Pro Tips: PDF Watermarking Best Practices
- •"CONFIDENTIAL" in red at 30% opacity is the legal industry standard
- •Diagonal watermarks (45°) are harder to crop out than horizontal ones
- •Use gray color for a subtle background watermark that doesn't obscure text
- •"DRAFT" watermarks help track document versions in review cycles
- •Once watermarked and saved, the text is permanently embedded in the PDF