Bulk Add Watermarks To PDFs

Ideal for protecting archives. Bulk select PDF documents and securely stamp every page identically before distribution.

Standardize Legal Marks

Stamp 'CONFIDENTIAL' natively onto hundreds of documents instantly without breaking a sweat.

ZIP Downloads

Downloads are packaged neatly. Start a bulk task and go grab a coffee—come back to a compiled ZIP securely watermarked.

Scalable Through API

Link your internal documentation flows to our API to batch process and watermark PDFs dynamically.

Why Choose API Watermark?

The robust, secure, and blazing-fast way to protect your digital properties.

Versatile Formats

We natively analyze and properly encode MP4s, PDFs, JPEGs, PNGs, and GIFs securely maintaining optimal bitrates.

Unremovable Encryption

Instead of relying on easily bypassed EXIF metadata, we permanently burn-in texts and images down to the pixel level.

Worldwide Distributed Edge

Requests are dynamically routed to the closest worker in our global fleet, keeping latency practically zero.

Custom Positioning

Lock it to the top-right, tile it infinitely, or offset it seamlessly using detailed percentage ratios!

Frequently Asked Questions

Does it watermark all pages of all PDFs?

Yes, every internal page of every selected document receives the identical watermark overlay.

Are they safe?

Your source documents are permanently deleted from our servers right after processing finishes.

Ready to secure your content?

Start watermarking your media seamlessly through our dashboard or integrate with our robust API in minutes.