#online-selling
Practical guides for online sellers: product photos, marketplace listings, video ads and growing your store.
Mercari Photo Tips (2026): 12 Photos, the Cover Photo and Condition Shots
How many photos Mercari allows, how to make the cover photo stand out in search, the 12 shots to take, and how to show condition so you avoid returns.
How to Make an Image Square (2026): Crop, Pad or Extend Without Losing the Product
Three ways to turn any photo into a square, step by step on every device, plus when Shopify, Etsy, Amazon and Instagram need square images and what size to use.
Gift Guide Images (2026): How to Make a Holiday Gift Guide Graphic That Sells
How to plan, design and size holiday gift guide images: groupings that get clicks, consistent backgrounds, grid layouts, product cut-outs and when to post.
How to Convert HEIC to JPG (2026): iPhone, Mac, Windows and Free Online
Every free way to turn iPhone HEIC photos into JPGs on iPhone, Mac, Windows and the web, how to convert a batch, and how to make your camera shoot JPG.
How to Fix White Balance in Photos (2026): iPhone, Android, Lightroom and Photoshop
What causes color casts, how to fix white balance with the eyedropper or sliders in the apps you already have, and how to keep a whole product catalog consistent.
How to Fix an Overexposed Photo (2026): Recover Highlights on iPhone, Lightroom and Photoshop
How much of an overexposed photo you can recover, step-by-step edits on phones, Lightroom and Photoshop, RAW vs JPEG, and how to keep white products from blowing out.
Facebook Cover Photo Size (2026): Desktop, Mobile and Safe Area
The upload size Meta recommends, how the cover crops on computers and phones, a safe area that works on both, and how to fit a square product photo into a wide cover.
Etsy Listing Video (2026): Length, Specs and What to Film
Etsy's listing video requirements, what to film for jewelry, candles, clothing and more, how to shoot and trim a clip on your phone, and making a quick video from a photo.
Etsy Banner Size (2026): Cover Photo, Mini Banner, Shop Icon
Every Etsy shop image size: big banner, mini banner, shop icon and profile photo, how the banner crops on phones, and how to make one from your product photos.
Image Aspect Ratios Explained (2026): 1:1, 4:5, 9:16, 16:9 and When to Use Each
A reference table of common image aspect ratios with pixel sizes and where each is used, plus how to calculate a ratio and change one without cutting off your product.
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