Bulk Image Watermarker
Watermark dozens or hundreds of photos simultaneously in seconds. Add custom copyright text, signatures, or brand logos directly in your browser with zero quality loss.
Drop batch photos here or click to browse
Select 10, 50, or 100+ images (JPG, PNG, WEBP). Full camera resolution preserved.
Watermark settings below apply to all photos automatically.
Tiled grid selected: Watermark will repeat diagonally across each entire photo.
Batch Processing Complete!
All photos watermarked and packed into a ZIP archive.
Why Bulk Watermarking Saves Photographers & Businesses Hours of Manual Work
Whether you are an event photographer delivering proof galleries, a real estate agency listing property portfolios, or an e-commerce brand selling on Wildberries, Ozon, Amazon, or Shopify, watermarking images one by one in Photoshop is tedious and inefficient.
Event & Wedding Photographers
Quickly stamp 200+ preview proofs before clients finalize purchases, preventing unauthorized sharing without paying licensing fees.
E-Commerce & Marketplaces
Protect product card photography from competitor cloning on marketplace platforms with clean corner logos or tiled badges.
Real Estate Brokers & Agencies
Overlay firm branding on home interior and exterior photos before uploading to MLS listings and rental portals.
How to Watermark 100+ Photos in 3 Easy Steps
-
1
Upload Your Photo Batch
Drag and drop any number of JPG, PNG, or WEBP images. Images load instantly into browser memory without uploading to a third-party server.
-
2
Configure Unified Watermark Settings
Set your copyright text or upload your transparent logo. Choose position, font size, opacity, and rotation. Preview adjustments in real time on any photo in your queue.
-
3
Process & Download as ZIP
Click "Apply Watermark to All Photos". Our client-side canvas engine batches through the queue and packages all processed images into a single zip file ready for instant download.
Frequently Asked Questions
Because processing takes place directly in your device's memory using HTML5 Canvas, you are not subject to strict server file-size caps. You can upload batches of 50 to 100+ high-resolution photos without arbitrary restrictions.
No. The tool processes each photo at its exact native pixel resolution (e.g. 24MP or 48MP raw exports). Watermarks scale proportionally according to your relative size settings.
No. Watermark Ninja performs 100% client-side rendering. Your private photos never leave your computer or phone, guaranteeing absolute privacy and zero bandwidth consumption.
Yes! Switch to the "Image Logo Stamp" tab to upload your transparent PNG logo. It will be seamlessly overlaid with your chosen opacity and positioning across every image in the batch.