Skip to content

Marketplaces · thumbnail

Allegro image requirements

What Allegro rejects and recommends in a product photo, and how Photos.sh checks a photo against it and fixes it in one step.

Create account Checked 2026-11-06

The rules

A photo that breaks a rule marked rejected is refused or suppressed; a recommended one is advice. The photo check measures each of them on your photo.

  • Rejected At least 500 px on the longest side
  • Rejected At most 26 megapixels
  • Rejected In JPEG, PNG or WebP
  • Rejected On a pure white background (RGB 255, 255, 255)
  • Rejected No added text, logos, watermarks or borders — No logos, text, icons, watermarks or frames on the thumbnail.

More on Allegro

Check by eye
  • Some categories allow a uniform light grey thumbnail background; used or damaged items, auctions and digital products are exempt.
  • A set must show every item in it and nothing extra.
  • Use sRGB colour.
The fix makes
2,000 × 2,000 px, JPEG, the product cut out onto white, filling 90% of the frame. Added text is painted out where the marketplace forbids it, and a photo under its minimum size is upscaled.

In the API

Check a photo against Allegro’s rules, or fix it and get the photo back. One credit a photo. API reference

curl -X POST "https://api.photos.sh/v1/check?marketplace=allegro" \
  -H "Authorization: Bearer $PHOTOS_KEY" \
  -H "Content-Type: image/jpeg" \
  --data-binary @photo.jpg
curl -X POST "https://api.photos.sh/v1/fix?marketplace=allegro" \
  -H "Authorization: Bearer $PHOTOS_KEY" \
  -H "Content-Type: image/jpeg" \
  --data-binary @photo.jpg \
  -o fixed.jpg

Photo check · Marketplace fix