Quick answer: A LinkedIn carousel is a document post: you upload a PDF, and each page becomes a swipeable slide. LinkedIn accepts PDF, PPT, PPTX, DOC and DOCX files up to 100 MB and 300 pages. Plan one idea over 5 to 10 slides in a 4:5 format, then add a caption.
Key facts
- LinkedIn document posts accept PPT, PPTX, DOC, DOCX and PDF files, with a limit of 100 MB and 300 pages.
- LinkedIn recommends converting files to PDF for the best upload quality.
- Videos and animations inside a document appear as static images.
- Anyone who can view the post can download the document as a PDF, so keep private material out of it.
- A LinkedIn post caption can hold 3,000 characters.
- Publiqa builds LinkedIn carousels of 5 to 10 slides in a 4:5 format.
What is a LinkedIn carousel?
A LinkedIn carousel is not a separate post type. It is a document post that people read by swiping, one page at a time. You create the pages in a design tool or slide deck, export them as one file, and upload that file as a document.
Why the name? Each page is a slide, and the swipe makes readers do a small, deliberate action instead of scrolling past. That is the appeal, though nobody can promise you a reach boost. LinkedIn publishes no multiplier for documents, so judge the format by your own numbers.
LinkedIn carousel size, format and file limits
Most confusion about LinkedIn carousel size comes from mixing LinkedIn's hard limits with design advice. This table separates the two.
| Spec | Value | Type |
|---|---|---|
| File types | PDF, PPT, PPTX, DOC, DOCX | LinkedIn limit |
| Maximum file size | 100 MB | LinkedIn limit |
| Maximum pages | 300 | LinkedIn limit |
| Page size | All pages the same size | LinkedIn guidance |
| Slide count | 5 to 10 | Our recommendation |
| Slide dimensions | 1080 x 1350 px (4:5) | Our recommendation |
| Caption length | Up to 3,000 characters | LinkedIn limit |
The 4:5 shape fills more of a phone screen than a square or a horizontal slide, which is why we favor it. Others work. If you build in PowerPoint, 1080 x 1350 pixels at 96 pixels per inch comes to 11.25 x 14.06 inches.
How do you plan a LinkedIn carousel post?
Start with a single idea you can state in one line. If you need two sentences, you have two carousels. Then build the arc backwards from the takeaway.
Here is a worked example. Our source is a 1,500-word blog post called "6 mistakes that make client reports unreadable", invented for illustration. It becomes an 8-slide carousel.
| Slide | Job | Words (max) |
|---|---|---|
| 1 | Cover with the promise | 12 |
| 2 | Why it matters | 25 |
| 3 to 7 | One mistake per slide, plus one fix | 25 each |
| 8 | Recap and one CTA | 20 |
Those caps are ours, and they stop slides from turning into pasted paragraphs. Notice that six mistakes became five slides: cutting the weakest one was easier than shrinking the text.
Design rules for mobile reading
Most people will see your slides on a phone held at arm's length, so design for the smallest screen first. These rules make that possible.
- Type size: keep body text at 32 px or larger on a 1080 px wide slide, and headlines at 56 px or larger. These sizes are our rule of thumb.
- Contrast: meet at least 4.5:1 for normal text, the ratio in the W3C's WCAG guidance.
- One idea per slide: if a slide needs a second headline, split it.
- Margins: leave about 60 px on every side so nothing hugs the edge.
- Consistency: reuse one template, one color pair and one font family across the whole file.
- Progress cues: a page number or small arrow tells readers there is more.
Test the file by shrinking it to the size of a stamp. If you can still tell where the headline is, the hierarchy works.
How do you make a LinkedIn carousel in Canva, PowerPoint or an AI tool?
Three routes lead to the same PDF.
- Slide software: set a custom slide size, build the pages and export to PDF. PowerPoint, Keynote and Google Slides all work.
- A design tool such as Canva: start from a template at 4:5, edit the text, and download as PDF.
- An AI generator: give it an article and it drafts slide copy and layouts; you review each slide.
Whichever route you choose, PDF is the safest export because LinkedIn recommends it. Flatten layered pages and check that every page has the same dimensions. Use secure (https) links inside the file.
How do you post a carousel on LinkedIn?
LinkedIn's help article covers the flow for a personal profile. On desktop:
- Click Start a post on your homepage.
- In the pop-up, click More, then the Add a document icon.
- Click Choose file and select your PDF. You can pick one file.
- Add a title, which tells members what the document is about, and click Done.
- Write your caption. Hashtags and mentions are optional.
- Click Post.
On the mobile app, tap Post, then the More icon, then Document, and follow the same steps. LinkedIn notes that documents can also go to a Page, but its help article gives no separate steps for Pages, so check the flow in your admin view. After posting, you can edit the description or delete the post, but you cannot swap the document itself. Proof the file first.
Write the caption and the first comment
Think of the caption as a LinkedIn carousel post's second headline. Do not repeat the slides. Open with the problem in one line, tell readers what the carousel delivers and end with a question that invites an answer from someone who has done the work.
Keep links out of the caption if you can, and put them in the first comment instead. Add two or three hashtags at most. The document title is separate from the caption, so make it plain and specific, such as "6 client-report mistakes and how to fix them".
LinkedIn carousel examples that work, and why
Instead of naming posts that may be deleted, here are four patterns that appear again and again in strong LinkedIn carousel examples.
| Pattern | Slide logic | Use it when |
|---|---|---|
| Checklist | One item per slide, check-mark style | You have a repeatable process |
| Before and after | Left-right contrast, then the rule | You can show a visible improvement |
| Framework | Name, 3 to 4 parts, example per part | You teach a method |
| Story arc | Situation, mistake, turn, lesson | You have a real experience |
We deliberately do not quote engagement figures for these patterns. No public data separates them reliably, so measure your own.
Schedule and measure your LinkedIn carousels
Pick a publishing slot and hold it for a month before you judge anything. From LinkedIn's post analytics, track impressions, reactions, comments and reposts per post. Add click-throughs from your own tracked links, since those show who moved from the slides to your site. Compare formats against each other, using at least five carousels and five text posts. For a fuller walk-through of publishing, see how to schedule LinkedIn posts.
If your article-to-carousel work extends to Instagram, our carousel post guide covers both platforms.
How Publiqa helps with LinkedIn carousels
Start in Campaign Studio: paste an article or link in Publiqa and the master core engine extracts the thesis, hooks and CTA, then writes a LinkedIn version, including a 5 to 10 slide carousel in 4:5, and versions for the other 11 channels. Its LinkedIn caption respects the 3,000-character limit.
Review each slide against the legibility rules above. A campaign costs about 10 credits, and each content revision costs 1. Then plan the week in the Smart Planner, a drag-and-drop calendar with suggested posting times (see Planner and Autopilot).
LinkedIn requires a document file, so check which export options your workspace offers and upload the result as a document. The Publiqa AI studio sends content to your channels through outgoing webhooks and headless CMS integrations, which are live. Direct publishing to social networks is rolling out, and the channel connection guides show the current status.
Your first LinkedIn carousel in one afternoon
Pick your strongest article. Spend 20 minutes on the one-line idea and the slide outline, 40 minutes on copy at 25 words per slide or fewer, and 30 minutes on layout and export. Run the stamp test, post it on a weekday morning, and write down impressions after 7 days.
The free trial includes 200 credits and no credit card requirement, plenty for a first carousel. Turn an article into a carousel.
FAQ
How to post a carousel on LinkedIn?
Start a post, click More, choose Add a document, select your PDF, add a title and click Done. Then write a caption and click Post. LinkedIn accepts one file of up to 100 MB and 300 pages, and you cannot replace it after posting.
How to create a carousel post on LinkedIn?
Plan one idea across 5 to 10 slides, design them at a consistent 4:5 size, and export the file as a PDF. Upload it through the post box as a document. Keep text large and short enough to read on a phone.
How to make a carousel on LinkedIn without design skills?
Use a template in a slide or design tool, or an AI generator that drafts slides from an article. Keep a single font and two colors, limit each slide to about 25 words and check contrast before you export.
How to upload a carousel on LinkedIn from your phone?
Open the LinkedIn app, tap Post, tap the More icon, then Document. Pick the PDF from your device or a cloud service, add a title, tap Next, write a description and tap Post.