TikTok Shop Product Image Resizer & Compliance Fixer
Fix rejected product photos in seconds. Automatically center vertical Shopify photos onto a pure white (#FFFFFF) 1:1 square, remove gray studio borders, and convert .webp or .png to .jpg under 5 MB.
Supports WEBP, PNG (Transparent), JPG, AVIF, GIF (Max 20 images · 30 MB/file · iOS Safari auto-converts HEIC on upload)
Apparel & Footwear Size Chart Builder
| Size | Chest / Bust | Waist | Length |
|---|---|---|---|
Long Infographic Slicer (800px Wide · <1 MB Guaranteed)
TikTok Shop rejects tall AliExpress, Canva, or Shopify description banners over 1 MB. Slice tall graphics into seamless 800 px wide JPEGs that load fast on mobile.
Recommended Tools for TikTok Shop Sellers
Verified platforms to automate catalog syncing, create 5+ gallery graphics, and fulfill US/UK orders on time.
Build your brand store and sync compliant 1:1 product feeds, inventory, and orders directly to TikTok Shop.
Design lifestyle graphics for gallery slots #2–#9 and unlock TikTok Shop's 'Good' Listing Quality Tier.
Launch print-on-demand apparel and mugs with fast local US & UK fulfillment that passes TikTok SLAs.
TikTok Shop Image & Sync Error Code Lookup (Instant Fix Directory)
Paste any Seller Center rejection message, Shopify/Printify sync error, or OpenAPI code below to jump straight to the fix.
upload file type is invalid (Code 12038004)
Shopify / Sync
Cause: Shopify CDNs serve .webp or .avif files, and iPhones shoot .heic. Sync connectors (AfterShip, M2E, EasyStore) reject non-JPG/PNG headers.
Solution: Re-encode to standard sRGB .JPG.
incorrect aspect ratio / sale property image invalid
Shopify / Variant
Cause: Uploading vertical 2:3 or 4:5 photos where TikTok requires strict 1:1 square dimensions.
Solution: Wrap inside a 1200×1200 px pure #FFFFFF square using White Pad mode.
First image: Use a plain, solid color background
Main Image AI
Cause: Transparent PNGs flatten to solid black (#000000), or lightbox photos have gray (#EAECEF) edges.
Solution: Flatten alpha to #FFFFFF and enable Whiten Gray Studio Edges.
First image: Remove the color borders / watermarks
Main Image AI
Cause: Supplier catalog photos include decorative frames or corner logos around the perimeter.
Solution: Set Trim Supplier Border to 5%–10% in the editing bar to shave off outer frames.
Create_product - Invalid product description image uri
Description URI
Cause: Product description images exceed the strict 1 MB limit or use .webp / .gif formats.
Solution: Slice tall infographics into 800×800 px JPEGs guaranteed under the 1 MB limit.
Size chart image must be ≥1024px (Resolution Floor)
Size Chart OCR
Cause: Apparel size chart graphic is under 1024 px on the shorter side or hard to read on mobile screens.
Solution: Generate a crisp 1200×1200 px high-contrast size chart table.
Misleading product / Unit vs. Case quantity confusion
Account Health
Cause: Using multi-unit photos without clear pack badges on variant/secondary slots causes buyer disputes.
Solution: Apply a 2-Pack, 6-Pack, or Single Unit badge on Gallery Slots #2–#9.
product package size is invalid (Shopify Sync)
Non-Image Bug
Cause: Often confused with image size! Occurs when Shopify sends decimal shipping box dimensions (e.g. 4.5 in).
Solution: Round shipping parcel length, width, and height in Shopify to whole integers (e.g. 5 in).
Official 2026 TikTok Shop Product Image Guidelines
Complete technical requirements across Seller Center, Media Center, and third-party catalog sync apps.
| Specification | Official Seller Center Rule | Why Listings Get Rejected | ShopImgFix Auto-Fix |
|---|---|---|---|
| Resolution | Min 600×600 px (US) / 800×800 px (UK/EU) | Uploading supplier thumbnails under 600 px or blurry upscales | 1200 × 1200 px HD Square |
| Aspect Ratio | 1:1 Square (3:4 in select fashion) | Syncing 2:3 vertical Shopify photos ("incorrect aspect ratio") | 1:1 Pure #FFFFFF Smart Pad |
| File Format | JPG, JPEG, or PNG | Uploading .WEBP or .HEIC files ("upload file type is invalid") | Standard sRGB .JPG |
| Max File Weight | 5 MB (Gallery) / 1 MB (Description) | Heavy uncompressed PNGs timing out during upload | 120 KB – 350 KB @ Q92 |
| Hero Image (#1) | Pure white #FFFFFF backdrop, ≥80% fill |
Transparent PNGs turning black or gray studio margins | #FFFFFF Matte + Edge Whitener |
| Gallery Count | 5 to 9 images for 'Good' Quality Tier | Fewer than 5 photos caps organic reach at 'Fair' tier | Live 5/9 LQT & Duplicate Check |
Frequently Asked Questions: TikTok Shop Image Errors
Step-by-step solutions to the most common Seller Center and Shopify sync rejections.
Why does TikTok reject WEBP images (and say "upload file type is invalid")?
Shopify and modern web stores automatically serve images as .webp or .avif. However, TikTok Shop Seller Center's manual uploader, rich-text description editor, and connectors like AfterShip Feed and M2E Cloud strictly require .jpg, .jpeg, or .png files. Dropping your WebP files into ShopImgFix converts them into standard sRGB JPEGs in one click.
How do I fix "incorrect aspect ratio" when syncing 2:3 vertical photos from Shopify?
Cropping vertical 2:3 or 4:5 photos to 1:1 in Shopify ruins your storefront theme and cuts off the top and bottom of tall bottles or apparel. Use ShopImgFix's White Pad mode to center the full vertical product inside a 1200×1200 px pure white square without losing a single pixel.
Why did my transparent PNG background turn black on TikTok Shop?
When transparent PNGs are flattened to JPEG without a background matte, transparent pixels default to solid black (RGB 0,0,0), which immediately fails TikTok Shop's pure white main-image check. ShopImgFix automatically composites transparent cutouts onto pure #FFFFFF white.
How do I fix "First image: Use a plain, solid color background" on lightbox photos?
Real camera photos taken in a lightbox often have slightly gray or warm corners (such as #EFEFEF) that fail TikTok's automated edge-pixel scanner. Enable the Whiten Gray Studio Edges toggle in the editing bar above to snap off-white margins to pure #FFFFFF.