Miko Bulk Image Resizer documentation

Getting started

• What is Miko Bulk Image Resizer?Resize, compress, watermark and describe product images across a whole catalog, previewed before anything changes.
• Getting startedInstall the app, point it at your catalog, and run your first job safely.
• Image healthSee which images are oversized, wrongly sized or missing alt text before you change anything.

Running a resize

• Choosing a resize modeFit, fill, pad or exact: which mode keeps your product visible and which will crop it.
• Choosing which products to run onTarget everything, a collection, a vendor or a hand-picked set instead of the whole catalog.
• Preview before you commitSee a real before and after on your own images, at full size, with the file size of each.
• Scheduled runsKeep new product images consistent automatically instead of remembering to run the job.

SEO and branding

• Bulk alt textWrite per-image alt text across the catalog, generated from the product it belongs to.
• Image filenamesRename image files to something descriptive, which image search reads as a ranking signal.
• WatermarksProtect your own product photography with a positioned, adjustable watermark.

Safety net

• History and undoing a runEvery original is backed up, so a run you are unhappy with can be reverted.

Troubleshooting

Start here when something is not behaving the way you expect. Each article below covers one symptom, with the checks in the order that resolves the most cases first.

• A batch finished but some images were not changedAn image is skipped when the run would not change it, such as one already at or under your target, so fewer images change than are scanned.
• A run produced no results at all, or auto-resize never fires on new productsAutomatic resizing refuses to start when there is nothing to charge against or your spend limit is already reached.
• The images look worse than expectedQuality is compression, not resolution. Raise quality for artefacts, or the maximum dimension if detail is the problem.
• I need the original images backOriginals are backed up before anything changes and can be restored per batch or per image, but only for 30 days.
• Alt text did not change, or I want it revertedAlt text is written separately from resizing, is capped by Shopify at 512 characters, and has its own revert.
• Still stuckWhat to send us so we can read the per-image outcome of that batch, including why each one was skipped.

Billing

• Billing and limitsHow usage pricing works, what counts as a processed image, and how to set your own ceiling. There is no monthly fee.

Frequently asked questions

• Troubleshooting and FAQAnswers to the problems merchants hit most often when changing images in bulk.

Support

• Getting supportWhere to reach us, and what to send so we can check the per-image outcome of a specific batch and answer in one reply.