How to generate Taobao/Pinduoduo product main images: hands-on AI tutorial (sizes + compliance notes)

When a new product goes live, the main image is the first thing buyers see in search results: clicks, visits and orders mostly start from that small square thumbnail. Hand-shooting plus retouching is slow, and templates all look alike. This tutorial breaks "how to generate a Taobao/Pinduoduo product main image" into four steps you can follow as-is, with size and compliance notes, using Yiye Renjian's Combo and Product-set tools throughout.

Step 1: Prepare a clean source photo

The source photo sets the ceiling for the main image. A front or 45-degree angle, even lighting and the cleanest background possible work best; straighten photos with obvious lens distortion before uploading.

A single source photo uploaded to Product-set must not exceed 8MB. Compress oversized files first, so quality is not lost before uploading.
If the source has old watermarks or tape marks, remove the watermark first, otherwise the flaws will be treated by the AI as part of the picture and painted into the main image.
For cluttered product shots, use image-to-image to swap the background first, with an instruction like "use image 1 to generate a white-background e-commerce main image". A single reference image also supports brush annotations, changing only the background while keeping the product untouched.

Step 2: Pick the listing platforms

After entering Combo, the first step is checking the platforms: Taobao/Tmall, JD, Pinduoduo and Amazon, single or multiple selection. With multiple platforms, one set is generated per platform and consumption is calculated per platform. The page shows the total consumption before generating, so run one platform to settle the style first, then expand to the rest.

Step 3: Fill in the product selling points

Type the product name, key selling points and target users by hand, or click "AI product image analysis" and let the AI extract them from the photo. The more specific the selling points, the better the main image matches the real item: "316 stainless-steel liner, 500ml, commuter-friendly" is far more useful than "good quality", and buyers know at a glance whether it is what they want.

Step 4: Generate, pick finalists, batch download

The AI first plans a prompt per slot (each can be hand-edited before creating), main-image and detail-image slots generate in parallel, and progress shows live as "done / total". After generating, pick one finalist per slot, regenerate individual unsatisfying slots with a revised prompt, then click "batch download" to take the whole set per platform.

Size and compliance notes

Prepare in a 1:1 square: main images on mainstream platforms must be square, and 800×800 pixels is the common starting line. Minimums vary by category; the upload page shows the current requirement, and the exported files follow that prompt.
Keep the first image on a white or light solid background: white backgrounds stand out more in search listings and are less likely to be judged as cluttered scenes. For a white background, use image-to-image rather than cutting the product out of the source photo and skewing it.
Do not pile on cluttered overlays: promo corner badges, third-party watermarks and superlative copy can all get a main image rejected. The Advertising Law strictly limits absolute claims, so copy like "better value" is safer than superlatives.
Keep image copy consistent with the real item: specs, quantities and freebies on the main image must match the detail page and what is actually shipped, otherwise it risks being judged as false advertising.
Double-check before listing: sets are composed and sized per each selected platform's rules, but platform rules update from time to time, so a quick check against the latest rules before the official listing is safer.

Four common pitfalls

Checking four platforms right away: consumption rises fast while the style is unsettled. Trial one platform first, expand once satisfied.
Leaving selling points blank for the AI to improvise: the result looks clean but carries no information, and click-through never picks up. Two minutes on selling points makes a big difference.
Preparing only the main image: detail-page long images default to 3:4 and their modules need a separate generation tick. Do not discover missing images on listing day.
Using the source photo as the main image: source shots often carry desk clutter and handwritten notes, while AI generation comes out cleaner. Generate first, then pick.

Start now

Combo tool: upload source photos and get a full platform set in four steps, planning main and detail images together.
Product-set tool: with just one main image in hand, batch out multi-angle sets.
Image-to-image tool: single-point edits like white-background swaps, brush where to change.