LinkedIn Carousel Size and Dimensions: The 2026 Guide
The exact dimensions, aspect ratio, and file format for LinkedIn carousels in 2026, plus a quick checklist so your slides never get cropped.
The short answer
LinkedIn carousels are PDF document posts. Design on a 1080 by 1350 pixel canvas (a 4:5 portrait ratio), export to PDF, and keep the file under 100 MB. That is the format that fills the most screen space in the mobile feed without cropping.
Why portrait wins
Most of your readers are on a phone. A portrait 4:5 slide takes up more vertical space than a square, so it takes longer to scroll past. More time on screen reads as dwell time to the algorithm, and dwell time is what pushes a post into more feeds.
The numbers that matter
- Canvas: 1080 x 1350 px (4:5). Square 1080 x 1080 also works, but portrait performs better.
- Format: PDF. LinkedIn turns it into the swipeable document viewer.
- File size: under 100 MB.
- Slides: up to 300 pages are allowed, but 6 to 10 is the sweet spot for engagement.
- Safe margins: keep text at least 60 px from every edge so nothing clips on small screens.
Common mistakes that get slides cropped
Designing at 1920 x 1080 (landscape) is the top one. It looks fine on a laptop and gets squeezed into a thin strip on mobile. The second is putting your hook or page numbers in the bottom corner, where the swipe controls and profile row can cover them.
Skip the manual setup
You do not have to remember any of this. Carousely builds every slide at the right portrait size, keeps your text inside the safe margins, and exports a LinkedIn ready PDF in about 60 seconds. Want to see the format first? Browse real carousel examples.
Quick checklist before you post
1. Portrait 4:5 canvas at 1080 x 1350.
2. Exported as a PDF.
3. Text inside a 60 px safe margin.
4. 6 to 10 slides.
5. A clear call to action on the final slide.
Ready to try it? Generate a carousel free and download the PDF.