Batch logo overlay
Image Watermark Tool
Apply one logo or watermark image to many images as a single mark, horizontal repeat, or diagonal repeat.
Upload images to watermark
JPG, PNG, WebP, HEIC · up to 20 files · 20MB each
You can paste copied images with Ctrl+V
Processed in your browser · no server upload
Watermark Image
Choose one logo, signature, or brand mark image.
Position and Output
Apply the same watermark settings to every uploaded image.
Placement mode
Watermark position
Examplesample-image.png
{name}=source filename, {index}=number. Leave blank to use the source filename.
Upload at least 1 target image to apply a watermark.
Frequently Asked Questions
Can I watermark multiple images at once?
Yes. Upload target images, choose one watermark image, and apply the same placement mode, size, opacity, and spacing to the full batch.
Can I repeat the watermark across the image?
Yes. Choose a single placement, horizontal repeat, or diagonal repeat, then adjust size, opacity, and spacing before exporting.
Are my images uploaded to a server?
No. The watermark is composited in your browser, and original images are not uploaded to OneClickTool.
Supported Scope
JPG, PNG, WebP, and HEIC images can be converted, compressed, resized, or prepared with presets.
RAW editing, SVG vector editing, and AI background removal are not currently supported.
- image watermark
- add watermark to photos
- batch logo overlay
- diagonal watermark
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