Check your photo against OTTO's rules.
The published image guide for OTTO says: JPG or PNG, at least 480 × 960 pixels, at most 4,500 pixels per side, RGB; the main image cut out or on a light, neutral background.. OTTO sets rules for the main image that can be measured from the photo: background colour. Drop a photo to see which ones it meets. It runs in your browser; nothing is uploaded.
Choose a marketplace and a photo.
Rules come from each marketplace's own help pages, summarised in the guides (checked 10 October 2026). Size, file size and format are checked as well.
What OTTO asks for.
Source: OTTO Market — Onboarding guide (18 January 2024) · checked 10 October 2026 · Read again · 13 October 2026
- Main image
- Light, neutral background
Cut out, or on a light, neutral background such as light grey, white, off-white or light beige - Format
- JPG or PNG, RGB colour space (CMYK is not accepted)
- Size
- At least 480 × 960 pixels; at most 4,500 pixels on any side
- Number
- At least one image per variant; a limit of 10 images per variant should not be exceeded
- Product fill
- The product takes up 85% of the image area
- Accuracy
- Only the product that matches the product description, in the matching product variant
- Props
- Few or no props, and it must be made clear that props are not included in the delivery
- File name
- No special characters or umlauts in the file name
- Energy label
- Energy-efficiency information must not appear in the product images; it is submitted as data
- Where
- Germany
- OTTO image resizer
- 2,000 × 2,000 px — inside OTTO's limits: at least 480 × 960 pixels, at most 4,500 pixels on any side.
- Herofab
- 2,000 × 2,000 px, within the limits OTTO publishes
Checkers by marketplace.
OTTO main images, answered.
What background does OTTO require for the main image?
Light, neutral background. The checker reads the background from the edges of the photo and reports its exact RGB value.
OTTO's image guide: what does it say about Size?
At least 480 × 960 pixels; at most 4,500 pixels on any side
OTTO's image guide: what does it say about Number?
At least one image per variant; a limit of 10 images per variant should not be exceeded
Where do these figures come from?
From OTTO Market — Onboarding guide (18 January 2024), read on 10 October 2026. Marketplaces update their rules; the official page is the final reference.
Is my image uploaded?
No. The file is read and processed inside your browser; nothing is sent to a server.
Your next collection, shot this week.
20 credits at sign-up, no card required. Images made with free credits carry a watermark. Herofab also removes the watermark from those images once credits are purchased.