What are LinkedIn Carousels?
LinkedIn carousels — technically called document posts — are multi-page PDFs uploaded as native posts. Users swipe through slides directly inside the LinkedIn feed without leaving the app. Each slide is typically 1080 × 1350 px (4:5 portrait), and a carousel can run from 3 slides to 300 (although 7–12 is the sweet spot). They function similarly to Instagram carousels but live in a professional context with a B2B audience.
For US consultants, founders, and B2B marketers, LinkedIn carousels are the single highest-engagement organic format on the platform. They produce up to 3× the dwell time of standard text posts and dramatically more saves, which LinkedIn weighs heavily in feed ranking. Carousels work especially well for frameworks, case studies, step-by-step playbooks, before-and-after results, and industry trend breakdowns. The format invites a deliberate, scrollable read — perfect for the kind of substantive content B2B audiences actually want.
How to create LinkedIn Carousels with publy.ch
With publy.ch the carousel comes out as a ready-to-upload PDF:
- Describe the topic — one sentence is enough, e.g. "A 7-step framework for cold email that converts."
- AI structures the slides — cover, intro, 5 framework slides, recap, CTA. You see the whole flow before any design work.
- Apply the brand kit — colors, fonts, logo, and a slide template tuned for LinkedIn's 4:5 viewing area.
- Edit slide by slide — rewrite copy, swap charts, drop in screenshots. Real-time preview at the LinkedIn rendering size.
- Export as PDF — multi-page PDF ready to upload as a native document post. Or schedule directly.
The PDF arrives sized for LinkedIn, not Instagram or print. No conversion step, no awkward cropping.
Best Practices for LinkedIn Carousels
- Cover slide is everything. It is what appears in the feed. Use a numbered promise — "7 cold email mistakes that kill reply rates" — and a clear visual hierarchy.
- Use a recap slide near the end. Slide N-1 should be a one-frame summary of every slide before it. This is the slide people screenshot and share.
- One concept per slide. Don't pack a slide with three sub-points. Split them.
- Design for the 4:5 LinkedIn render. LinkedIn crops aggressively. Test at portrait size before publishing.
- Keep slide count between 7 and 12. Fewer feels thin; more loses readers before the CTA.
- End with a clear CTA slide. "DM me 'framework' for the full template" or "Comment your biggest takeaway." Single ask.
- Repurpose long-form content. Turn a 2,000-word blog post into a 10-slide LinkedIn carousel. publy.ch supports this directly.
- Caption supports, doesn't repeat. The post text should add context, not restate the carousel. Tease the value and invite engagement.
Formats and Dimensions
- File format: PDF (native LinkedIn document upload)
- Recommended slide size: 1080 × 1350 px (4:5 portrait)
- Alternative: 1080 × 1080 px square
- Slide count: 3 to 300 (sweet spot: 7–12)
- Maximum file size: 100 MB
- Fonts: embed all fonts in the PDF to avoid substitution
Common Mistakes to Avoid
- Uploading a landscape PDF. It will be letterboxed on mobile. Always use portrait 4:5.
- Tiny text. LinkedIn renders carousels small on mobile. Body text should be at least 28 px equivalent.
- No CTA on the last slide. Without a clear next step, your carousel ends in a dead end.
- Recycling Instagram dimensions. Instagram square posts crop badly inside LinkedIn's viewer.
- No screenshots or proof. B2B audiences want evidence. Include charts, dashboards, or anonymized client results.
Create LinkedIn Carousels with AI — Try publy.ch Free for 3 Days
With publy.ch you produce LinkedIn-ready document carousels in minutes — sized correctly, branded consistently, and exported as PDF. Start your 3-day free trial at publy.ch.