LinkedIn carousel guide: size, slides and best practices

What is a LinkedIn carousel in 2026?

A LinkedIn carousel is a document post. You upload a PDF or a slide deck, and LinkedIn displays each page as a slide that readers swipe or click through. LinkedIn's old native image carousel is gone: it stopped supporting new ones on June 26, 2023, and later removed previously posted ones from the app, as Social Media Today reported at the time. Carousel ads still exist, but they are a paid ad format, not an organic post.

As of October 2026 you have three ways to post several visuals at once:

How do you post a carousel on LinkedIn?

From LinkedIn's help page on uploading documents: click Start a post, click More, choose the Add a document icon, pick your file (from your computer, Dropbox or Google Drive), give it a title, write the post text and publish. On mobile the path is Post, More, Document.

Three rules from that page that trip people up:

• You cannot edit the document after posting. You can change the caption or delete the post, but a typo on slide 4 means reposting.
• One page size per file. PDFs with mixed page sizes have to be fitted to a single size, and layered PDFs must be flattened first.
• No animation or video. Anything animated displays as a static image.

LinkedIn also recommends converting to PDF for the best quality, and the document title shows on the post, so write that title as a promise ("7 pricing mistakes we made at seed"), not a filename.

What size should a LinkedIn carousel be?

LinkedIn does not publish a recommended page size for document posts. What matters is that the page is readable on a phone, where most people will see it. The sizes practitioners use:

Export at the final pixel size, keep the file comfortably under the 100 MB cap by compressing images, and check it on your own phone before posting.

How many slides should a LinkedIn carousel have?

The hard limit is 300 pages. The useful limit is much lower. For most founder content we aim for 6 to 12 slides: a cover, one idea per slide, and a closing slide. Fewer than five feels thin for the swipe; past 15, readers tend to drop off and the post starts to read like a report.

The right length is set by the idea. A framework with five steps is seven slides (cover, five steps, close). A customer story might be nine. If you find yourself padding slides to hit a number, the idea is too small for a carousel and should be a text post.

What design rules make a carousel people finish?

A carousel's job is to earn the next swipe, every slide. The rules we follow when designing them for clients:

1. The cover is the hook. One line, large type, a specific promise or number. "How we cut CAC 38% without new channels" beats "Growth lessons". Our hook examples work just as well as cover lines.
2. One idea per slide. If a slide needs two headings, it is two slides.
3. Big type. Headline text around 60 to 80 px and body text no smaller than about 32 px at 1080 px wide stays readable on a phone.
4. Under 40 words per slide. Readers swipe in seconds; dense slides get skipped.
5. Consistent template. Same margins, fonts and colors on every slide, with your name or handle small in a corner so screenshots carry attribution.
6. Show, do not decorate. A real chart, a screenshot or a before-and-after table earns more saves than icons and gradients.
7. Close with a reason to comment. A question about the reader's own situation, not "Agree?".

The caption still matters. Write two or three lines that frame the carousel and give one reason to open it, then let the slides do the work. Run the caption through our post formatter to check line breaks before publishing.

What carousel topics work for founders?

Carousels suit ideas with structure: steps, comparisons, numbers. A few that work well for founders and executives (examples are illustrative):

• Your operating playbook. "Our 6-step hiring loop for first sales hires" from a Series A SaaS founder.
• A decision teardown. "Why we killed our freemium plan: the numbers" with real before-and-after metrics.
• A market map. "The 5 kinds of buyers in Indian D2C logistics, and what each one asks in the first call."
• A myth-versus-reality list. A healthtech founder on what hospitals actually ask before piloting software.
• A mistakes list. "9 things I would change about our seed round," which tends to earn saves and thoughtful comments.

What does not work: motivational quotes on slides, generic "10 productivity tips", and carousels made by pasting AI output into a template. Readers can spot those in a slide, and LinkedIn's 2026 ranking is built to demote recycled advice (see our algorithm guide). For a steady pipeline of angles, try the post ideas generator.

How do you make a LinkedIn carousel accessible?

Document posts do not have a per-slide alt text field the way image posts do. LinkedIn's help page notes that, for accessibility, members who can view your post can download the document as a PDF, so the PDF itself carries the accessibility burden. In practice:

• Use real text, not flattened images of text, where your design tool allows it, so screen readers and the downloaded PDF can read it.
• Summarize the carousel in the caption. Someone who cannot see the slides should still get the point from the post text.
• High contrast. Dark text on a light background, or the reverse, with no text over busy photos.
• Do not rely on color alone to show what is good or bad in a comparison; add a label.
• If you post images instead of a document, use the ALT option on each image, which LinkedIn supports for multi-image posts.

How Postlit uses carousels for clients

Carousels are part of the post mix in our LinkedIn ghostwriting service, usually one every week or two, built from material in the client's monthly voice interview: a framework they explained, a decision they walked us through, numbers they were happy to share. The client approves every slide before it goes live. If your current carousels are not earning saves, send a short form via WhatsApp or email from our contact page for a written free teardown.