OTTO product images: requirements and tips for sellers

Why product images matter so much on otto.de

In otto.de search results, shoppers see the main image, title and price first. The image often decides whether someone clicks your product or the one next to it. OTTO itself names high-quality images, alongside informative texts and well-maintained attributes, as a reason a product can become more relevant to shoppers and be shown. OTTO doesn't publish how it weighs this. What's certain: without a valid image, a product doesn't go live at all.

The technical requirements

According to the OTTO Market API (Products interface) and the API best practices (as of October 2026):

• File format: JPG or PNG for images, PDF for documents.
• Colour space: RGB only. CMYK isn't supported.
• Minimum size: 500 × 1000 pixels – this also applies to colour tiles and energy labels.
• Maximum size: 4500 pixels on any side.
• File name: no special characters and no umlauts.
• Image address: when uploading via the API you provide a valid URL (up to 2083 characters). OTTO downloads the image from there.

Older OTTO material such as the 2024 onboarding guide still lists 480 × 960 pixels as the minimum. Stick to the higher value from the current API documentation to be safe.

How many images are allowed?

Each variation needs at least one image of type IMAGE. The API documentation doesn't limit the number of images, but OTTO's onboarding guide recommends sending no more than 10 images per variation so processing works reliably. Besides regular product images, the API supports other media types, such as dimensional drawing, colour variant, energy efficiency label, material sample, product data sheet, user manual, safety data sheet, assembly instructions and warning label. Some categories require specific media; the category data tells you which.

Content rules for the main image

OTTO's onboarding guide lists these content requirements:

• The image shows only the product that matches the description, and it matches the variation.
• The main image should be a cut-out; otherwise use a light, neutral background (for example light grey, white, off-white or light beige).
• The product fills 85% of the image area.
• Few or no props – and if you use them, make clear they're not included.
• Energy efficiency information is submitted as separate data and must not appear in the product image.

Images and variations

On OTTO, images belong to the individual variation. A red shirt needs a red image, a blue one a blue image. Using the same photo for every colour confuses shoppers and invites returns. For colour selection there's the colour variant media type (colour tile), and the minimum size applies there too. How to group variations properly is covered in Setting up variations on OTTO.

Tips for better product images

1. Optimise the main image for the small tile: the product must be recognisable even small on a phone – which is why the 85% rule makes sense.
2. Use extra images to answer questions: back view, details, material, size comparison, product in use. Lifestyle shots work as extra images, not as the main image.
3. Show dimensions: a dimensional drawing helps especially for furniture and home textiles and reduces wrong purchases.
4. Check colour accuracy: if the photo's colour is clearly off, returns and bad reviews become likely – see Returns on the OTTO marketplace.
5. Compare with competitors: search your main keyword on otto.de and see how your main image looks next to the others.

Finding errors and measuring the effect

If an image doesn't arrive, the variation's marketplace status shows it – the API has a notice such as "INCOMPLETE_MEDIA_ASSET_IMPORT" for this. Then check format, colour space, size and whether the image URL is publicly reachable. When you switch to a new main image, note the date and watch the position for a few weeks. MarktRank shows you weekly whether your product rises or falls for a keyword, so you can judge the change instead of guessing. More in otto.de SEO: rank products higher.

Frequently asked questions