If you're prepping creative for Pinterest, getting the video ad specs for Pinterest Promoted Videos right is the difference between a clean, full-screen ad and one that gets cropped, pillarboxed, or rejected at upload. This guide covers the aspect ratios, file types, length ranges, and sound/caption rules worth testing, plus a pre-launch checklist so you're not fixing files the night before a campaign goes live.
What Pinterest Promoted Videos Are, and Why Specs Matter Here
A Pinterest Promoted Video is a paid video Pin that appears in home feeds, search results, and related-Pins sections, competing with static Pins and other video content for a tap. Unlike a feed where every post is video by default, Pinterest mixes video Pins into a grid of images, so a Pin's shape, cover frame, and first few seconds carry more weight than on a pure video platform.
Getting the video ad specs for Pinterest Promoted Videos right isn't just a technical checkbox. The aspect ratio you choose changes how much space your ad gets in a grid layout next to static images, and a poorly chosen cover frame can make a good video look like a broken thumbnail. Specs here are really creative decisions wearing a technical hat.
Video Ad Specs for Pinterest Promoted Videos: The Core Table
Pinterest's exact technical limits can shift over time, so treat the numbers below as the general shape to work within, and double-check the current limits in Pinterest's own ad specifications before a big launch. The structure, however, has stayed consistent: a handful of supported aspect ratios, common video file types, a file-size ceiling in the multi-gigabyte range, and a length window that runs from a few seconds up to several minutes.
| Spec | What Pinterest generally supports | What to actually use |
|---|---|---|
| Aspect ratio | Square (1:1), standard vertical (2:3 or similar), portrait (4:5), full vertical (9:16) | 9:16 or 2:3 for Promoted Videos; square only if the same creative also runs as a static grid test |
| Resolution | Scales from the aspect ratio, commonly around 1080 px wide | Export at 1080 px width minimum so text and logos stay sharp on larger screens |
| File format | Common web video containers such as MP4 and MOV | MP4, since it's the most broadly compatible across ad accounts and devices |
| File size | A cap in the multi-gigabyte range for most accounts | Keep well under the limit; a 30-second ad rarely needs to approach it |
| Length | From a few seconds up to several minutes, depending on placement | Treat 15–30 seconds as a strong starting point to test for Promoted Videos in-feed |
| Captions | Native on-platform captions plus support for burned-in text | Use both — burned-in captions as a safety net if native captions don't render as expected |
| Cover image | A frame or custom image representing the video in-feed | Always set a custom cover; don't let an auto-selected frame represent your ad |
Aspect Ratio: Why Vertical Usually Wins on Pinterest
Pinterest's feed is built around a masonry grid, so a taller Pin naturally takes up more vertical real estate than a square or landscape one scrolling past it. A full vertical frame, close to 9:16, tends to dominate more of the screen on mobile, which is where most Pinterest browsing happens. A 2:3 ratio is Pinterest's long-standing default and still performs well as a safe middle ground between square and full vertical.
If you're repurposing an ad made for another vertical placement, a 9:16 video shot or rendered for TikTok, Reels, or YouTube Shorts can usually be reused on Pinterest with little to no cropping. That reuse is one of the quieter advantages of standardizing your video production on a single vertical format across platforms rather than cutting a different aspect ratio for every channel.
Length, Captions, and Sound Design for Promoted Videos
Pinterest technically allows for fairly long videos, but longer isn't automatically better for a Promoted Video competing for attention in a scrolling grid. Treat length as a function of what the ad needs to say, not the maximum the platform allows. A single-product offer usually only needs enough time to show the problem, the product in use, a point of proof, and a call to action — which is why a tight 15–30 second cut is worth testing before anything longer.
For deeper guidance on choosing a duration for this specific placement, see this breakdown of recommended video length for Pinterest video ads, which goes further into how length interacts with objective and placement.
On sound: design every Promoted Video so it works with the volume down. Many Pinners browse the way they'd flip through a catalog — scanning quickly, often without sound on — so burned-in captions or clear on-screen text should carry the message even if the voiceover or music never gets heard. A video that only makes sense with audio risks losing its hook entirely.
Common Mistakes That Hurt Performance on Pinterest Video Ads
- Uploading a square or landscape video and letting Pinterest letterbox it, instead of re-exporting in a taller ratio that fills more of the feed.
- Leaving the cover image on auto-select, which can land on a blurry transition frame, a blank background, or a mid-blink shot of a person.
- Burying the product or offer past the first few seconds, assuming viewers will keep watching past a crowded scroll.
- Relying entirely on voiceover with no captions, so the message disappears for anyone browsing on mute.
- Treating Pinterest creative as a copy-paste from a feed-first platform, rather than designing for a slower, more deliberate, catalog-style scroll.
A Pre-Launch Checklist for Pinterest Promoted Video Ads
- Confirm your export is in a vertical or near-vertical ratio (2:3, 4:5, or 9:16), not square or landscape, unless you're deliberately testing that shape.
- Check the file type is MP4 or MOV and the file size is well under the platform's current cap.
- Pick a custom cover frame or image by hand — don't accept the default.
- Add captions, either native to Pinterest or burned into the video, and watch the first 15–30 seconds with the sound off.
- Make sure your product, offer, or hook appears clearly within the opening seconds, not buried after a slow intro.
- Export companion sizes (square and landscape) if you plan to test the same creative across other placements or platforms.
How FrameNotion Fits Into a Pinterest Workflow
If you're building Pinterest video ads from scratch, FrameNotion can shortcut the production step. Paste a product or landing page link, and FrameNotion AI writes and renders a 30-second vertical video ad — 9:16 at 1080×1920, 30 fps — complete with hook, problem, benefit, proof, offer, and call to action, built from the page content rather than a generic template. Because the output is vertical by default and also comes bundled as 4:5, 1:1, and 16:9, it's straightforward to pick whichever aspect ratio you want to test on Pinterest without re-shooting or re-editing anything.
Every ad includes word-by-word captions, an AI voiceover in any of 18 supported languages, and music cut to the beat — or music-only or silent versions if that fits your brand better — so the sound-off design question is already handled before you upload. A finished ad takes about 10 to 20 minutes, and the first one is free after signing up and confirming your email, no card required. You can see what finished ads look like on the examples page, or read through how FrameNotion works before starting.
Keep in mind FrameNotion doesn't publish directly to Pinterest or any other ad platform, and it doesn't report on ad performance — it hands you a finished MP4 ready to upload into Pinterest Ads Manager yourself, where you can check the current specs and launch the campaign.
Frequently asked questions
What aspect ratio should I use for a Pinterest Promoted Video?+
A full vertical ratio close to 9:16, or Pinterest's standard 2:3, generally fills more of the feed than a square or landscape video. Test vertical first, since it tends to take up more visual space in Pinterest's grid layout.
Does Pinterest require captions on video ads?+
Captions aren't strictly required to upload, but since many Pinners browse with sound off, adding native or burned-in captions helps your message land even when the volume is down.
How long should a Pinterest Promoted Video be?+
Pinterest allows a wide range of lengths, but a tight 15 to 30 second cut is a reasonable starting point for most product-focused Promoted Videos. For more detail, see the guide on recommended video length for Pinterest video ads.
Can I reuse a vertical video made for TikTok or Reels on Pinterest?+
Often yes. If the video is already in a 9:16 vertical format with clear captions and a strong opening few seconds, it usually transfers to Pinterest with little to no re-editing, aside from choosing a custom cover frame.
Does FrameNotion publish ads directly to Pinterest?+
No. FrameNotion generates a finished MP4 video ad that you upload yourself into Pinterest Ads Manager or any other ad platform. It doesn't offer direct publishing or ad performance analytics.