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Batch Image Editor

Downscale a batch of images to one max width (default 1920px) with an optional bottom-right watermark, then download everything as a ZIP. Same max-width and watermark apply to every image — local Canvas work, 3 free images a day.

Runs on CanvasJSZip

100% Local Browser Native

How to Use the Batch Image Editor

1. Upload the batch

Select multiple images. Free plan processes 3 images a day — usage counts per image; Pro is unlimited.

2. Set max width and watermark

One max-width (only wider images scale down, aspect kept) plus one optional watermark for the bottom-right corner.

3. Download ZIP

Results keep each file's original format at quality 0.9 and save as batch_edited_images.zip.

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Frequently Asked Questions

How do I prep 60 marketplace shots identically?

Set one max width (e.g. 1920) and an optional watermark — every image wider than the max scales down proportionally and all save into one ZIP with an edited_ filename prefix. There are no per-image crop, rotate, format, or quality settings.

One setting set for all — any exceptions?

No exceptions needed: max width and watermark text are the only batch settings. Images narrower than the max pass through at original dimensions, and mixed portrait/landscape shoots process in a single batch.

Lossless vs lossy operations here?

Everything re-encodes: each image is redrawn on canvas and saved with its original MIME type at quality 0.9 (quality applies to JPEG/WebP; PNG ignores it). Even narrower-than-max images re-encode, so bytes can change.

Are my images uploaded when editing?

No — everything runs locally in your browser on Canvas; photos never leave your device. Free covers 3 images a day (counted per image, so finalize settings first); Pro is unlimited.

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Last updated October 2026