Image Tool — Bulk Image Lab

Reformat every product image to a consistent size —
in one batch.

Mismatched image ratios make even great products look amateur. Bulk Image Lab reformats your entire catalogue to a single canvas size — 1:1, 4:5, 16:9, or custom — adding padding and a background colour where needed, and backing up every original before it touches a pixel.

Four canvas ratios Padding & background colour Automatic originals backup True bulk processing
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Inconsistent image ratios make your store look inconsistent — and cost you sales on every marketplace

Every Shopify store ends up with the same problem: images uploaded at wildly different sizes. Supplier images at 3:4. Phone photos at 4:3. Banner crops at 16:9. The result is a storefront that looks ragged on collection pages and fails marketplace image requirements on Amazon, Google Shopping, and Meta Shops. The old fix — opening Photoshop or Canva for every product, manually adding a white canvas, exporting, re-uploading — takes hours per hundred products and needs repeating every time a supplier sends new imagery. AssetScope’s Bulk Image Lab automates the entire process in a single operation.

Three steps from install to first fix.

Scan your images

Run the pre-flight scan to see every product image in your catalogue flagged by its current aspect ratio. Bulk Image Lab shows you exactly which images are non-compliant and which products are already the right shape — so you know the scope before you start.

Choose ratio & settings

Select your target canvas ratio — 1:1, 4:5, 16:9, or a custom ratio — then set your padding amount and background colour. Preview the output on a sample image before committing, so you know exactly what the reformatted images will look like.

Apply in batch

Select the products or collections to process and click Apply. AssetScope reformats every image to your chosen canvas, backs up the originals, and uploads the new versions directly to Shopify. Your storefront and marketplace listings update automatically.

Everything in the tool.

Four canvas ratios

Choose from the four most common aspect ratios: 1:1 (square) for Shopify storefronts and Instagram, 4:5 for Facebook and Pinterest, 16:9 for banners and YouTube thumbnails, or enter a fully custom ratio. Every image is reformatted to the same canvas in one pass.

Padding & background colour

Images that don’t match the target ratio get padding added rather than being cropped or stretched. Choose any hex background colour — white for clean storefronts, light grey for marketplace neutrality, or your brand colour for consistency.

Automatic originals backup

Before any image is reformatted, AssetScope backs up the original. You can restore any or all originals at any time from the Bulk Image Lab dashboard — so you can experiment with ratios freely, knowing your originals are safe.

True bulk processing

Select all products or filter by collection, vendor, or tag and process every matching image in a single operation. No opening products one by one. No downloading and re-uploading. AssetScope handles the whole batch via the Shopify API.

Marketplace-ready output

Amazon, Google Shopping, Meta Shops, and most comparison engines each have image ratio requirements. Bulk Image Lab lets you create a marketplace-ready version of your catalogue — 1:1 for Amazon, 4:5 for Meta — without permanently altering your live storefront images.

Pre-flight ratio scan

Before you commit to a batch reformat, run a scan to see every product image flagged by its current ratio. You’ll know exactly how many images need reformatting and which products are already compliant — so you only process what needs work.

Common questions about the bulk image lab.

What image formats does Bulk Image Lab support?
Bulk Image Lab processes JPEG and PNG images — the two formats Shopify supports for product images. Images are reformatted and re-uploaded as JPEG (with your chosen background colour composited) or PNG if the original was PNG. WebP images stored by Shopify are handled transparently.
Are my original images backed up before processing?
Yes — always. Before Bulk Image Lab reformats any image, the original is backed up inside AssetScope. You can restore individual images or an entire product’s images at any time from the Bulk Image Lab dashboard. Originals are retained for 30 days after processing.
Which marketplace image requirements does 1:1 satisfy?
Amazon requires a minimum 1:1 square ratio (or portrait with a white background) on the main product image. Google Shopping strongly recommends 1:1 for apparel and 4:3 or wider for non-apparel. Meta Shops and Instagram Shopping both display best at 1:1. Bulk Image Lab’s 1:1 output with a white or light grey background satisfies all four.
How many images can I process in one batch?
There is no hard limit on batch size — Bulk Image Lab processes images sequentially via the Shopify API and will work through your entire catalogue however large it is. For very large stores (10,000+ images) we recommend running the batch overnight. You’ll receive a completion notification when the job finishes.
Will reformatted images affect my theme’s layout?
Only positively. Themes that use Shopify’s built-in image component already handle different ratios by cropping or letterboxing — which is exactly the inconsistency Bulk Image Lab removes. After reformatting, every image is the same canvas size, so your theme displays them identically across all collection and product pages.
Can I reformat images for a specific collection only?
Yes. The product selector lets you filter by collection, vendor, product type, or tag before applying a batch. You can reformat your “Amazon” collection to 1:1 and your “Instagram” collection to 4:5 as two separate operations — each with its own backup set — without touching the rest of your catalogue.
Built with merchants, for merchants

We actually ship what you ask for.

AssetScope ships updates every few weeks, driven by real merchant feedback. If there’s a workflow we haven’t covered yet — or something in the app that could work better — tell us. We read every submission and most make it into the app within a few updates.

We read and reply to every request

7-DAY FREE TRIAL

Try AssetScope free for 7 days — no limits, on us.

Run your first Speed Audit, bulk edit your products, see exactly what it saves you — then decide. It’s $1.99/month after that. Less than a coffee.

Try FREE — 7 Days on Us
FREE for 7 days Hours of admin saved $1.99/mo — cancel any time