Watermark Sensitive Passports & PDFs
Without Ever Uploading to the Cloud.
Protect your driver licenses, passports, and confidential PDF contracts from identity theft. Everything runs 100% in your browser memory. Zero bytes ever leave your device.
Don't trust our words? Disconnect your Wi-Fi right now. Your files are processed 100% in your browser memory.
ID Card & Passport Watermark Guard
Protect driver licenses, passports, and utility bills from identity theft. 100% in-browser processing.
Why traditional watermark tools put your identity at risk
Most online PDF & image editors upload your files to cloud servers where data breaches happen.
Traditional Online Editors
Upload your raw driver licenses and bank statements to remote cloud servers. Once stored, they are vulnerable to leaks and AI training scrapers.
PrivaMark ArchitectureZero-Upload
Your files never leave your browser memory. Processing happens 100% locally via WebAssembly and HTML5 Canvas. Zero bytes ever sent to any server.
GDPR & HIPAA Compliant
Because zero personal data is collected or transmitted, using PrivaMark for client documents automatically complies with strict European & US privacy standards.
No subscription traps. Pay only when you need it.
Need to watermark a single passport today? Buy a $2.99 Single Pass or grab Lifetime Unlimited access.
Free Starter
$0 FreeTest the 100% in-browser offline engine
- 100% In-Browser Local Processing
- Standard ID & Passport Presets
- Single File processing at standard res
- Ultra High-Res 300DPI Lossless Export
- Batch Multi-File Processing
Single Pass
One-Time PayNeed to protect 1 passport or PDF right now?
- Instant 300DPI Lossless HD Export
- Full Multi-Page PDF Security Stamp
- Blackout Sensitive Data Redaction
- Zero Recurring Fees (No auto-renewals)
- 7-Day Money-Back Guarantee
10-Credits Pack
Save 70%For freelancers and occasional monthly tasks
- 10 Document Export Passes
- Credits Never Expire (Use anytime)
- High-Res Vector Rendering
- Custom Watermark Color & Opacity
- 7-Day 100% Money-Back Guarantee
Frequently Asked Questions
Everything you need to know about our Zero-Knowledge security
How can I be sure my files are not sent to any server?
You can verify this in 2 seconds: Simply turn on Airplane Mode or disconnect your Wi-Fi before dropping your files into PrivaMark. You will see that the watermarking, redaction, and download all function completely offline! Alternatively, press F12 and inspect the Network tab.
What happens to my files after I close the browser tab?
Your files only exist temporarily in your computer's RAM memory while the tab is active. Once you close or refresh the tab, all image and PDF memory buffers are instantly wiped. Nothing is saved or logged.
Does this work for multi-page PDF documents?
Yes! PrivaMark uses client-side WebAssembly to parse multi-page contracts, legal disclosures, and pitch decks, applying full-page diagonal security watermarks to every page in seconds.