How to Watermark Multiple Images at Once Online
Adding a watermark to one photo is easy, but watermarking dozens or hundreds of photos individually is exhausting. Here is how to watermark multiple images at once using our free bulk image watermarker in minutes.
Step 1: Select or Drag & Drop Your Images
Open Watermarker.online and drag your images directly onto the workspace. You can select multiple JPG, PNG, or WebP files at once. Because our engine processes files locally using HTML5 Web Workers, there are no file upload delays or bandwidth limits.
Step 2: Choose a Professionally Designed Template
Instead of designing watermarks from scratch, browse over 50+ templates across categories like Copyright, Photography, Stock Previews, and Tiled repeats. Preview the template in real-time on your sample photo.
Step 3: Customize Text, Logo, and Auto-Scaling
Update the brand name, copyright notice, or logo. Ensure Auto-Scale is enabled so the watermark automatically scales proportionally whether an image is a 24-megapixel landscape or an Instagram square.
Step 4: Apply to All & Download as ZIP
Click Apply to All Images. The studio executes the watermark rendering queue in background Web Worker threads. Once complete, click Download ZIP to save your watermarked collection in one organized archive.