LinkedIn Carousel Post Guide

LinkedIn Carousel Post Guide

LinkedIn carousel specs and best practices — slide dimensions, aspect ratios, PDF format, practical slide count, content structure, and design tips for document posts.

Published May 6, 2026 · 6 min read

What is the LinkedIn carousel format?

A LinkedIn carousel is a multi-page PDF uploaded as a post. LinkedIn calls it a "document post" internally. Each page becomes one slide that readers swipe through horizontally. You'll see a slide counter at the bottom and navigation arrows on desktop.

Carousels are different from multi-image posts. When you upload 4–9 individual photos, LinkedIn renders them as a static gallery grid — no swiping, no narrative sequence. A PDF document post gives you the swipeable format with numbered slides, which is what most people mean when they say "LinkedIn carousel."

The format works because it creates dwell time. Every swipe is an engagement signal that LinkedIn's algorithm treats as stronger than a passive like. A reader who swipes through 8 slides spends 30–60 seconds on your post — far longer than the 3–5 seconds a text post typically gets. That extended attention earns wider distribution.

LinkedIn carousel post specs

Export your slides as a single PDF at the dimensions below. Most creators design in Canva, Figma, or Keynote and export to PDF.

Portrait slides (4:5) are the better default for text-heavy carousels. They claim more vertical screen space on mobile, where the majority of LinkedIn sessions happen. Square slides are easier to repurpose for Instagram if you cross-post.

How many slides should a LinkedIn carousel have?

Five to ten slides is the sweet spot. Fewer than five feels thin — there isn't enough room to develop an idea, and readers don't get the satisfying sense of progression that makes carousels worth swiping. More than 12–15 slides and you'll see steep drop-off. Most readers won't swipe past slide 10 unless the content is unusually compelling.

LinkedIn allows up to 300 pages per PDF, but that ceiling is irrelevant for most use cases. The practical constraint is attention, not platform limits. A tight 7-slide carousel that delivers one clear idea per slide will outperform a 20-slide deck that repeats itself or pads thin material.

LinkedIn carousel content structure

Each slide should earn the next swipe. Here's a structure that works for most topics:

1. Cover slide — Hook headline + swipe cue. An arrow icon or "Swipe →" text tells readers the post is interactive. Without a visible cue, some people don't realize they can swipe.
2. Problem or context slide — Frame why this matters. One sentence or a short stat.
3. Core content slides (3–7 slides) — One idea per slide. A heading, a short explanation, maybe a visual. Don't cram two points onto one slide.
4. Summary or takeaway slide — Recap the key insight. Optional but useful for longer carousels.
5. CTA slide — A single, clear ask: follow for more, drop a comment, save this post, visit a link. One CTA, not three.

Design tips for LinkedIn carousels

• Use large, readable type. Body text should be at least 24 px. Anything smaller becomes difficult to read on mobile without zooming.
• Keep important elements 80 px inset from each edge. LinkedIn adds padding on mobile, and content too close to the frame clips.
• Stick to 2–3 colors and one font family. Visual consistency across slides signals professionalism and makes the carousel feel intentional.
• Number your slides ("3/8") so readers know how far along they are and how much remains.
• Export at 150 DPI or higher. Lower resolution makes text look fuzzy, especially on retina screens.
• Add your name or handle to every slide. Carousels get screenshotted and shared outside LinkedIn — your attribution should travel with the content.

How to upload a carousel to LinkedIn

See also LinkedIn's official document upload guide.

1. Start a new post on LinkedIn (desktop or mobile).
2. Click the document icon (labeled "Add a document" on desktop). On mobile, tap the "+" icon and select "Document."
3. Upload your PDF. Add a title — this appears as a small label above the carousel in the feed.
4. Write your post caption. The caption should hook readers and give context for why the carousel is worth swiping through. Publish.

Common LinkedIn carousel mistakes

• Uploading individual images instead of a PDF. Multi-image uploads render as a grid, not a swipeable carousel. Always use a single PDF.
• Cramming too much text per slide. Each slide should communicate one point. If you need a paragraph to explain it, split it across two slides.
• Missing a swipe cue on the cover slide. Without an arrow or "swipe" indicator, many readers scroll past without realizing the post is interactive.
• Skipping the CTA on the final slide. The last slide is your highest-intent moment — the reader made it all the way through. Ask for something specific.
• Using tiny fonts. What looks fine on your 27-inch monitor becomes unreadable on a phone screen. Test at mobile size before publishing.
• Inconsistent slide dimensions. Mixing square and portrait slides in one PDF causes awkward cropping. Pick one aspect ratio and stick with it.

How Lunatic AI helps with carousel content

Lunatic AI writes the words that go on each slide — the hook headline for your cover, the one-liner per content slide, the framework labels, the CTA text. Pair us with Figma, Canva, or Keynote for visuals and layout. Start in the content calendar to plan a carousel idea alongside your regular posts, then draft the slide-by-slide text before you open your design tool. You'll spend less time staring at blank slides and more time on the visual polish that makes carousels stand out.