100% Client-Side • Instant Speed

Batch Watermark Tool

Add custom text watermarks to PDF files and ID photos to prevent unauthorized copies. 100% local browser processing.

Batch Watermark Documents (Images & PDF)

Add custom watermark stamps to identity cards, contracts and documents. 100% client-side privacy.

Zero Server Upload

•Files never leave your device•Offline Capable

RAM AES-256•HTML5 Client-Side

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Sponsored placement supporting free & secure client-side productivity tools for everyone.

1. Protect Identity Documents from Fraud

Adding semi-transparent text watermarks (e.g. "ONLY FOR BANK VERIFICATION ON 29/08/2026") across your identity cards, driver licenses, and invoices prevents malicious actors from misusing your copies.

2. Zero Server Upload Security

100% Client-Side: Rendered directly inside RAM using HTML5 Canvas and pdf-lib.
Batch Processing: Process multiple images and PDF documents simultaneously and download as a ZIP archive.

Quick FAQ

Frequently Asked Questions (FAQ)

Answers to common questions regarding features, client-side security, and usage.

Q1.Is this watermark tool safe for sensitive IDs and passports?

Yes, 100% safe. All watermarking runs entirely in your browser memory via WebAssembly/Canvas and pdf-lib. No files are uploaded to any server.

Q2.Can I watermark multiple PDF files and images in batch?

Yes, you can upload multiple files at once and download them all packaged in a single ZIP file.

Google AdSense Placement

Sponsored placement supporting free & secure client-side productivity tools for everyone.