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Allegro image requirements
Last checked against the platform’s documentation: August 2026
The short answer
- Size
- Min 500px longest side. Recommended 2,560×2,560px
- Background
- THUMBNAIL: white background RGB 255.255.255, no borders or adornments
- Shape
- Any aspect ratio
- Not allowed
- Added text — store name, logo, promotions — is banned. Text physically ON the product or its original packaging is fine
What Allegro requires
Everything in this section is published by Allegro. Each line is marked as a rule or as advice, because the two are not the same thing when you are deciding what to do.
Size and shape
Min 500px longest side. Recommended 2,560×2,560pxRequired
Max displayed 2,560×2,560pxRequired
Max 26 MpxRequired
Any aspect ratioRequired
Background
THUMBNAIL: white background RGB 255.255.255, no borders or adornmentsRequired
“Thumbnail: white background RGB 255.255.255, no borders or adornments.”
— Allegro’s own wording GALLERY images: ANY background colour is permittedRequired
“Gallery images may use any background colour.”
— Allegro’s own wording
What the photo may and may not show
Added text — store name, logo, promotions — is banned. Text physically ON the product or its original packaging is fineRequired
“Added text such as store name, logo or promotions is banned. Text physically on the product or its original packaging is fine.”
— Allegro’s own wording Allegro requires AI-generated or AI-modified photos to be labelled — including a real product on an AI background, or a virtual model. Allegro provides the labelling toolRequired
“The new law does not ban the use of AI — it only imposes a transparency requirement”
— Allegro’s own wording
The file
JPG/JPEG/PNG (WEBP via API only)Required
Formats: JPG, JPEG or PNG (WEBP only via API or file upload)Required
“Images can be saved in the JPG, JPEG, or PNG format.”
— Allegro’s own wording
How many images
Photo slots: 10 on a regular accountRequired
“on a regular account — 10 images”
— Allegro’s own wording Business accounts get 16 in most categories, and 40 for Automotive and Real EstateRequired
These rules are what our Allegro packs are built from.See what you get
These are the rules. We build to them.
Upload one photo and get back a set sized, framed and backgrounded to exactly what is on this page. No studio, no measuring, no rejected listing.
Ready-made Allegro packs, built from these rules:
- Hero1 image
- Starter3 images