| Field | Source guidance |
|---|---|
| Photo count | Up to 12 |
| Background | Plain background recommended |
| Lighting | Natural lighting to show the actual color |
| Pixel dimensions | Not specified in this source |
The 1200-pixel square is our optional workspace choice. Mercari does not publish that size in the cited guide.
A practical preparation workflow
Use the first image to identify the item, then document all sides and any flaws. Check that the background-removal mask has not removed a loose thread or an edge that matters to condition. Keep an unedited close-up when a detail needs explanation.
The preset opens a 1200 × 1200 pixel canvas. It keeps the subject’s proportions while arranging it on a square background. Run the mask, inspect the edge and adjust padding before export. Smart product framing can find the subject, center it at the preset fill, and download in one action. Fill and background choices are identified in the studio.
Check the file and the listing
Export a copy, then open the downloaded file before uploading it. Check the smallest meaningful details: printed labels, fine edges, facial features or material texture. Look for clipped corners and unexpected white or transparent areas. Keep the original alongside the export so you can make another version without repeatedly compressing the same pixels.
Next, inspect the image inside the actual listing interface. A source image can be valid while the site’s thumbnail crop cuts off something important. Review both the main image and the smaller preview. When a guide does not publish a file cap or exact dimension, this page leaves the field unknown. It does not turn our workspace preset into a platform requirement.
The instructions here cover the specific surface named above. Other ad products, regional marketplaces and mobile workflows may use different rules. Follow the linked official page and any requirement shown in your current uploader. Backdropless does not submit images, inspect your account or certify acceptance.
Questions that come up
Is the preset an official approval?
No. It sets a useful canvas based on the cited guidance. The platform still evaluates the image, product category and listing. Recommendations and hard limits are identified separately in the table.
Should I remove the background?
Only when the channel permits it and the product stays accurate. Review the mask for missing edges, accessories or condition details before publishing.
What if the upload is still rejected?
Read the platform’s current error message. File type, file size, dimensions, category policy and account settings can each cause a rejection. A successful local export only verifies that the image file was created.
Sources & method
Last checked: . Official rules can change. Calculated presets are identified separately.
- Creating a Listing. Mercari Help. Checked 2026-10-29.
- Published tool specifications. Backdropless. Checked 2026-10-29.