Image Size Cheat Sheet: Marketplaces & Social 2026
Exact image sizes and aspect ratios for Amazon, eBay, Etsy, Shopify, Instagram, TikTok, YouTube, LinkedIn and more, plus how to hit them from one photo.
· AI Image Extender Team
Blog
Field notes, comparisons, and step-by-step workflows for AI image outpainting, aspect-ratio conversion, and the messy edge cases that come up in real production.
Amazon vs Shopify vs Pinterest: One Product Hero, Four Ratios
How e-commerce sellers turn one studio-shot product photo into Amazon 1:1, Shopify 1.91:1, Instagram 4:5, and Pinterest 2:3 — with the prompt hints and audit checks that ship clean output the first time.
· AI Image Extender Team
Outpaint vs Upscale vs Content-Aware Fill: Pick the Right Operation
A decision matrix for image editing operations — when outpaint beats resampling, when upscale beats outpaint, when Photoshop content-aware fill is still the right call. With test images and side-by-side outputs.
· AI Image Extender Team
Vertical Phone Shots → 16:9 MLS Hero in Under a Minute
How real-estate agents turn iPhone vertical bedroom photos into MLS-ready 16:9 listing heroes with AI outpaint — phone source, prompt hints, and the actual failure cases (windows, mirrors, picture frames).
· AI Image Extender Team
When AI Outpaint Fails: Cluttered Desks, Half Faces, Cut-off Text
Honest documentation of where AI outpaint produces hallucinated artefacts — and the workarounds, including when to crop the source first and outpaint the crop instead of the original.
· AI Image Extender Team