Watermark Images Online

Batch watermark images and visual proofs in seconds with repeating diagonal patterns or transparent logos. 100% private in-browser.

Drop photos here to watermark

Drag and drop JPG, PNG, or WEBP photos. You can process up to 50 photos simultaneously in seconds.

or

Tired of watermarking by hand and chasing balances on WhatsApp?

With Paytograph, you upload your original files once. We automatically tile anti-theft watermarks across client previews, collect card or bank payments, and release full-resolution originals the moment the client pays.

Frequently Asked Questions

Everything you need to know about our free photo watermarker.

Are my images uploaded to a remote server?

No. This tool runs 100% locally inside your web browser using HTML5 Canvas. Your files never leave your computer or phone, ensuring complete privacy for unreleased client projects.

Why use a diagonal tiled watermark instead of a corner logo?

Corner watermarks can easily be cropped out or erased with smartphone AI object removers. Diagonal tiled patterns repeat across the entire canvas, preventing theft while allowing clients to evaluate quality, lighting, and detail.

What is the recommended watermark opacity?

An opacity of 20% to 35% is ideal. It keeps your intellectual property completely protected from screenshots without obscuring fine details.

Can I watermark multiple images at once?

Yes. You can drop up to 50 images at once. Once customized, click 'Download All as ZIP' to export your entire watermarked batch in seconds.

How is this related to Paytograph?

This tool uses the exact anti-theft watermarking engine built into Paytograph. With Paytograph, you don't even have to watermark manually: upload client deliverables once, share a private link, collect payment, and high-resolution originals unlock automatically.