LinkedIn Carousel Dimensions: The Size Cheat Sheet (2026)
Every LinkedIn carousel dimension in one place: organic PDF page sizes (1080×1350, 1080×1080, 1920×1080), carousel ad cards (1080×1080), aspect ratios and pixel sizes - a scannable cheat sheet.
For an organic LinkedIn carousel (a PDF document post), use 1080×1350 px (4:5 portrait) for the most feed height, or 1080×1080 (1:1 square); 1920×1080 (16:9) also works but is smallest in-feed. For a paid carousel ad, each card is 1080×1080 (1:1). Keep every page in a carousel the same size.
One page, every number. Bookmark this if you just need the dimension and not the full explanation - the deeper "why" is in the size & specs guide, and the paid-ad rules are on the ad specs page. The single most important rule: pick one size and use it for every page of the carousel, or LinkedIn will letterbox the odd ones.
Organic carousel (PDF document post)
An organic carousel is a PDF you post as a document. These are the page sizes that display well in the LinkedIn feed:
| Use | Pixels | Aspect ratio | Notes |
|---|---|---|---|
| Portrait (recommended) | 1080 × 1350 | 4:5 | Most feed height - best for mobile reading |
| Square | 1080 × 1080 | 1:1 | Safe, classic, works everywhere |
| Landscape | 1920 × 1080 | 16:9 | Smallest in-feed; use only if your content is wide |
Carousel ad (paid Carousel image ad)
The paid ad is square only - no portrait option.
| Element | Value |
|---|---|
| Card size | 1080 × 1080 px |
| Aspect ratio | 1:1 (square) |
| Cards | 2–10 |
| File type | JPG or PNG, ≤ 10 MB each |
Aspect ratios, explained in one line each
- →4:5 (1080×1350) - portrait. Tallest in the feed, so it takes up the most screen on a phone. Best default for organic.
- →1:1 (1080×1080) - square. The only option for ads; a solid, safe choice for organic too.
- →16:9 (1920×1080) - landscape/widescreen. Looks small in the feed; use for slide decks repurposed as carousels.
Common sizing mistakes
- →Mixing sizes between pages - the odd page gets white bars. Keep every page identical.
- →Designing at low resolution - export at full 1080-px width (or 2× for extra sharpness), not 800 px.
- →Using portrait for an ad - ads are 1:1 only; portrait is organic-only.
- →Tiny margins - keep text away from edges so nothing clips when LinkedIn renders it.
Export the right size automatically
Rather than remembering any of this, pick the format in Reathy - Portrait (1080×1350) or Square (1080×1080) - and it exports every page at exactly that size, same dimensions across the whole carousel. PDF for an organic document post, or square PNGs for ad cards. Free, no account needed to try.
Frequently asked questions
What are the dimensions of a LinkedIn carousel?
For an organic PDF carousel, 1080×1350 px (4:5 portrait) is recommended, with 1080×1080 (1:1 square) as a safe alternative and 1920×1080 (16:9) for wide content. For a paid carousel ad, each card is 1080×1080 (1:1). Use the same size for every page.
What aspect ratio is best for a LinkedIn carousel?
4:5 portrait (1080×1350) is best for organic carousels because it takes up the most height in the mobile feed. Square 1:1 is a safe second choice and the only ratio for paid carousel ads.
What is the image size for a LinkedIn carousel?
Design at 1080 px wide: 1080×1350 for portrait, 1080×1080 for square, or 1920×1080 for landscape. Exporting at 2× (e.g. 2160 px wide) keeps text extra sharp while holding the same aspect ratio.
Can a LinkedIn carousel be portrait?
Yes - organic PDF carousels can be portrait (4:5, 1080×1350), and that's the recommended size. Paid carousel ads, however, are square only (1:1).
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