The format guide · documents, done properly

LinkedIn carousels that get read: outline to PDF, no designer required

Ezekiah Livingston LinkedIn strategist and ghostwriter. A carousel I wrote for a client cleared 51,000 impressions organically, so this is the process, not the theory. Find me on LinkedIn.

Published August 28, 2026

TL;DR

A carousel is a PDF uploaded as a document. The feed shows the first slide the way it shows a post's first line: as a hook.

8 to 12 slides, one idea per slide. First slide hooks, last slide hands over a next step.

Design at 1080 x 1350 (4:5), type at 40px and up, high contrast, in Canva, Figma, or Slides.

Every swipe is a toll. A slide that only sets up the next slide gets both of them skipped.

Carousels earn attention the feed rarely gives text: seconds of deliberate swiping instead of a flick past. That dwell is exactly the kind of signal ranking systems reward, which is why well-made document posts keep overperforming. The operative word is well-made. Here's the whole process, writing first, design second, and none of it needs a designer.

The outline comes before the slides

Write the carousel as text before you open a design tool. The shape that works: one hook slide, one promise slide (what the reader will be able to do by the end), six to eight body slides carrying exactly one idea each, one summary slide, one closing slide with a single next step. If an idea needs two slides, it's two ideas or it's padding. Decide which.

The first slide is a hook, not a cover

Treat slide one like a post's first line, because the feed treats it that way. Title-case topic labels die unswiped.

✕ My Guide to Hiring Engineers✓ We interviewed 40 engineers to make 2 hires. The scorecard that finally fixed it.A cover announces a topic. A hook opens a debt the deck pays off.

Everything in the hook-writing guide applies to slide one, word for word.

Design rules that survive the feed

1080 x 1350 pixels, 4:5. Tallest allowed, most screen owned.
Type at 40px minimum. Carousels get read at thumbnail scale on phones, not at your export scale.
One thought per slide, five lines max. A dense slide reads as homework and ends the swipe.
Contrast over decoration. Dark text, light ground (or the reverse), one accent color, same layout every slide.
Page numbers. "4/9" quietly promises the deck ends, which keeps people swiping.
Export as PDF. That's what makes it a document post instead of an image.

Publishing and what to watch

Upload the PDF as a document post. The caption still needs its own hook, because the caption is what the feed truncates, and add alt text for the deck. Afterward, watch saves and comments rather than likes: a saved carousel is a bookmark, and bookmarks are the depth signal that matters. The caption itself is still a post, so the free Content Audit will grade it like one.

The swipe tax: every slide someone must swipe past is a chance to leave. If slide 4 exists only to set up slide 5, delete it and let slide 5 work for a living.

Free · the caption is still a post

Grade the caption before the deck ships

Paste your carousel caption into the free Content Audit. Hook, structure, readability, ending, substance, each called strong, mixed, or weak, with quotes.

Audit my caption Fix the hook first

Questions people ask

How many slides should a LinkedIn carousel have?

Eight to twelve. Fewer than eight rarely earns the format's dwell-time advantage; past twelve, completion collapses. One idea per slide, and cut any slide that exists only to set up the next one.

What size should a LinkedIn carousel be?

1080 x 1350 pixels, a 4:5 ratio, exported as a PDF. It's the tallest format the feed allows, so it owns the most screen. Design every slide on the same layout, with type at 40px or larger, because it gets read at phone scale.

Do carousels get more reach than text posts?

Well-made ones tend to, because deliberate swiping produces the dwell and save signals that ranking rewards. Badly made ones do worse than text, because the first slide fails exactly like a weak first line. The format amplifies craft in both directions, and nobody can honestly promise reach either way.

What tool should I use to make carousels?

Canva, Figma, or even Google Slides. The design bar is layout consistency and legible type, not artistry. Write the full outline as text first; the tool is the last step, not the first.

What's the difference between a document post and an image post?

A document post is an uploaded PDF the reader swipes through, and it's the format carousels use. A multi-image post shows photos in a grid. For teaching content, the document post wins: it preserves order, earns swipe dwell, and reads like a deck instead of an album.

Keep going: the hook-writing guide for slide one, the founder content system for what the deck should say, or why the algorithm rewards save-worthy posts.