Most sellers spend hours on a product video and about four seconds on the still image that decides whether anyone watches it. That still - the cover image, poster frame or thumbnail, depending on which platform's help centre you are reading - is what shoppers actually see first in a feed, a search grid or a product gallery carousel. If it is blurry, badly cropped or has text buried under a platform interface element, the video behind it may as well not exist.
The good news for busy sellers: a cover image is an image problem, not a video problem. You do not need editing software or a videographer to fix it. You need the right pixel dimensions, the right aspect ratio for each surface, and a bit of discipline about where you place text. This guide covers the specs for Amazon, TikTok Shop, Shopee, Lazada and Shopify as they stand in 2026, plus a workflow for producing every cover you need from a single source file.
Why the cover image does more work than the video
Video is genuinely effective on product pages. Industry benchmarks put sites using product video at roughly 4.8% conversion against 2.9% for sites without, and a majority of B2C sellers report video influencing a meaningful share of product-page sales. But those numbers describe videos that get played. On a marketplace product page, your video sits in the same gallery carousel as your photos, represented by a single thumbnail. In a social commerce feed, the cover is the entire advert until someone stops scrolling.
Two practical consequences follow:
- The cover is a listing image, and should be judged like one. Clear product, correct colour, sharp at thumbnail size.
- A default auto-generated frame is almost always the wrong choice. Platforms tend to grab a frame from the start of the clip, which is frequently a blurred pan, a half-open hand or an empty background before the product enters the shot.
Cover image and video specs by platform (2026)
Specifications change, so treat this as a working reference and confirm in your seller centre before a large upload. The pattern to notice is that cover ratios do not always match video ratios - a 9:16 video very often needs a 1:1 cover.
| Platform | Video spec | Cover / thumbnail | File notes |
|---|---|---|---|
| Amazon | 1920 x 1080 (16:9), 15 FPS or higher, under 500 MB, H.264 or MPEG-4 | Follows standard listing-image rules: 1:1 preferred, 2000 px or more on the longest side | JPEG, sRGB, styled to match the main image |
| TikTok Shop | 1080 x 1920 (9:16), MP4 or MOV, 15-60 seconds performs best | 1080 x 1920 (9:16) - the same frame as the video, but grid views crop it | Product images minimum 600 x 600, 800 x 800 or higher recommended, under 5 MB |
| Shopee | 3-30 seconds, 720p minimum, under 200 MB, 1:1, 4:5 or 16:9 | 1:1 square, minimum 500 x 500, 1024 x 1024 recommended | JPEG or PNG, white background strongly preferred |
| Lazada | Short product clips, 1:1 or 9:16 depending on placement | 1:1 square, 1000 x 1000 or larger to match listing images | Keep consistent with the main gallery image |
| Shopify | Uploaded to the product gallery or embedded in the theme | Poster image at 2048 x 2048 (1:1) to match product images; thumbnails render at 150-300 px | Target 100-300 KB after compression |
The ratio trap that catches most sellers
You shoot one vertical video. TikTok wants a 9:16 cover. Shopee and Amazon want that same moment as a square. Your own Shopify store wants a 2048 x 2048 poster so the gallery does not jump when the video loads. If you crop the 9:16 frame down to a square by eye, three times, in three separate sessions, you will end up with three slightly different crops and a gallery that looks careless.
The fix is to choose the frame once at the highest resolution you have, then produce every ratio from that one master file. Padding is your friend here: rather than cutting a vertical composition down to a square and losing the top and bottom of the product, pad it onto a white square canvas so the whole product survives. Tools like PixelPrep will take one master frame and output the marketplace-specific sizes in a batch, padding to a chosen background colour instead of making a destructive crop.
How to choose the frame
You have two options, and the second is better.
Option one: extract a frame from the video
Free and fast. Scrub to a moment where the product is fully in shot, static and in focus, then export a still at full resolution. Two cautions: video frames are usually softer than photographs because of compression and motion blur, and 1080p footage gives you a 1920 x 1080 frame at best - already below Amazon's recommended 2000 px on the longest side once you crop it square.
Option two: shoot a still on the same set
Before you strike the lighting, photograph the same composition with your camera or phone. You get full sensor resolution, no motion blur, and the freedom to nudge the styling. This is the single highest-return habit in this article and it costs about thirty seconds per shoot.
Text, safe zones and the mobile crop
Cover images are frequently overlaid by platform interface elements: captions, usernames, price badges, sound attribution, add-to-cart buttons and the profile grid crop. Text placed near an edge will be sat on.
- Vertical covers (9:16): keep essential content within the middle 60% vertically. Assume the bottom 20% and top 10% may be covered by interface elements.
- Square covers (1:1): leave a margin of at least 5% of the image width on all sides. Marketplace badges such as discount tags land in the corners.
- Text size: if it is not legible at 300 px wide, it is not legible in a search grid. Test by shrinking the image rather than trusting how it looks at full size.
- Grid crops: a 9:16 cover is not shown in full on a profile or category grid. Centre the product, not the caption.
Colour, background and consistency
Export covers in sRGB, the same as your listing photos. A cover exported in Adobe RGB or a wide-gamut phone profile will look flat or oddly shifted next to your gallery images, and shoppers read that inconsistency as a quality signal even when they cannot name it.
Match the background too. If your gallery is pure white and your video cover is a warm wooden tabletop, the carousel looks like it belongs to two different shops. A lifestyle cover can work very well, but make it a deliberate choice applied consistently across the catalogue rather than an accident of wherever you happened to film.
Common mistakes worth an audit
- Letting the platform auto-select the frame. Check every listing that has a video. This is the most common and most expensive mistake on the list.
- Uploading a video frame as the main listing image. Marketplace quality checks look at resolution and background, and a compressed 1080p frame often fails them.
- Text in a language your buyers do not read. Cross-border sellers regularly leave supplier text on the cover.
- Overweight files. A 6 MB PNG cover breaches TikTok Shop's 5 MB ceiling and slows your own product page. JPEG at quality 80-85 is the right default.
- Different crops of the same shot across platforms. Fix it once, export everywhere.
Your cover image checklist
- Shoot a still on set before packing up, at full camera resolution
- Pick one master frame per video, 2000 px or more on the longest side
- Export 1:1 for Amazon, Shopee and Lazada, 9:16 for TikTok Shop, and 2048 x 2048 for Shopify
- Pad rather than crop when the ratio changes, so the product stays whole
- Keep text inside the safe zone and legible at 300 px
- Export sRGB JPEG at quality 80-85, under 5 MB and ideally under 300 KB for your own store
- Check the thumbnail at its actual display size on a phone before publishing
- Set the cover manually on every listing, then re-check after any platform migration or bulk edit
Product video is one of the few remaining levers that reliably moves conversion on a crowded product page. But the video only earns its keep if the still in front of it does its job first. Treat the cover as a listing image with a play button on top, size it properly for every surface you sell on, and you will get considerably more out of footage you have already paid for.