How to make a LinkedIn carousel (PDF document posts) in 2026

LinkedIn buries its best-performing format. There's no "make a carousel" button anywhere in the app, which is why so many people assume LinkedIn doesn't do carousels. It does. You just make one by uploading a PDF as a document post, and LinkedIn turns each page into a swipeable slide.

It's worth the slightly awkward route, because document posts are the single highest-engagement format on LinkedIn, ahead of video, images, and text. So the real question isn't whether to make carousels, it's how to build one that LinkedIn rewards and people actually swipe to the end.

Here's the short version before the steps:

• A LinkedIn carousel is a PDF document post. Design slides, export to PDF, upload via "Add a document."
• Documents are the top format for engagement, beating video and every other post type.
• Keep it to 8–12 slides at 1080 × 1350, and make every page the same size or they get cropped.
• Completion rate matters now, so a tight carousel people finish beats a long one they bail on.

A LinkedIn carousel is a document post: you upload a multi-page PDF and LinkedIn displays each page as a swipeable slide in the feed. It's the only way to publish a swipeable, multi-slide post organically, and PDF is the recommended file type because it renders most reliably (LinkedIn Help, 2026).

There's a bit of history that confuses people. LinkedIn briefly tested a native, in-app carousel feature and then removed it on December 14, 2023 (Social Media Today, 2023). That short-lived beta is gone, but document posts were never part of that removal and have always been the real way to make a carousel. So when someone says "LinkedIn carousel" in 2026, they mean a PDF document post.

The format suits LinkedIn's audience perfectly: frameworks, step-by-step breakdowns, data summaries, and lessons-learned posts that people want to read slowly and save for later.

To make a LinkedIn carousel, design your slides, export them as a single PDF, then on LinkedIn click Start a post, click More, and choose Add a document. Upload your PDF, give it a title, write your post copy, and publish. The design happens outside LinkedIn; the platform just renders the file you give it.

Here are the steps on desktop:

1. Click Start a post at the top of your feed

2. Click More in the post window, then the Add a document option

3. Click Choose file and select your PDF

4. Add a title for the document, then click Done

5. Write your post copy above the document, add hashtags or mentions if you want, and click Post

On mobile it's nearly identical: tap Post, tap the More icon, choose Document, pick your file, add a title, tap Next, write your copy, and post. Button labels shift slightly between app versions, so if "Add a document" sits in a different spot, look for the document or paperclip-style icon.

Once your carousel is ready to go, our guide to the best time to post on Instagram shares the same timing logic you can apply to LinkedIn: post when your audience is actually online.

A LinkedIn carousel should be 1080 × 1350 pixels, the 4:5 portrait ratio, for the mobile feed, because it fills the most vertical space and pulls more attention. Square (1080 × 1080) is the safe choice if you reuse the same slides across platforms. The key rule is that every page must be the same size, or LinkedIn crops the odd ones to match.

A document post can hold up to 300 pages and a 100 MB file, and it accepts PDF, PPT, PPTX, DOC, and DOCX (LinkedIn Help, 2026). Those limits are generous, but they're not targets, as you'll see in the slide-count section below.

Here are the specs at a glance:

Our take: Always export to PDF, never upload a PPTX directly. LinkedIn converts other formats on the way in, and that conversion is where fonts shift and layouts break. Design wherever you like, but hand LinkedIn a finished PDF.

The title you type when uploading isn't a throwaway filename. It shows as the headline above your carousel in the feed, so it's the second thing people read after your post copy, and it frames what the whole document is about. A vague title like "presentation-final-v3" wastes that space.

Creators widely treat the title as a second hook, and that's the right instinct. Give it the same care as a headline: make it specific, promise a payoff, and match it to the post copy above. Whether or not it carries formal search weight, it visibly shapes whether someone decides your carousel is worth swiping into.

LinkedIn carousels get more engagement because documents are simply the platform's top-performing format. In 2026, Socialinsider's analysis of 1.3 million posts found document posts led every format at a 7.0% engagement rate, ahead of multi-image at 6.45%, video at 6.0%, images at 5.3%, and plain text at 4.5% (Socialinsider, 2026).

That's not a one-study fluke. Richard van der Blom's independent 2025 algorithm report, built on roughly 1.8 million posts, also ranked documents the highest-engagement format, at around 6.6% (Just Connecting, 2025). Two large, independent datasets landing on the same conclusion is about as solid as social-media benchmarking gets.

Why do they win? Carousels create dwell time. Each swipe is a small interaction, and the seconds someone spends moving through your slides signal to LinkedIn that the post is worth showing to more people. A text post gets a glance; a good carousel gets a minute.

A LinkedIn carousel should have 8 to 12 slides. Van der Blom's 2025 report found 8 to 10 slides performed best, and noted that completion rate now feeds into reach, with documents risking reduced distribution when people don't finish them (Just Connecting, 2025). The 300-page ceiling is irrelevant in practice.

This changes how you should build the post. Because finishing matters, every slide has to pull the reader to the next one, and a bloated 25-slide deck works against you even if each slide is fine on its own. Cut anything that doesn't earn its swipe.

A few practices that consistently help:

• Open with a hook slide that states the payoff, not a title card.
• One idea per slide, with large text that's readable on a phone.
• Cue the swipe with arrows or a "→" so people know to keep going.
• Design for the cropped preview, since the feed shows only slide one at first, so front-load the promise.
• Close with a clear call to action on the final slide: follow, comment, or a next step.

The three big carousel formats share a goal but differ in mechanics: LinkedIn takes a PDF, Instagram takes image files, and TikTok takes photos plus a sound. Each rewards a different behavior too, so the same idea is worth adapting rather than copy-pasting across all three.

The overlap is the opportunity. A carousel you design for LinkedIn is most of the way to an Instagram one, and with a ratio change, a TikTok slideshow too. Our guides on how to make an Instagram carousel and how to make a TikTok slideshow cover the quirks of each, so one idea can serve all three feeds.

Most LinkedIn carousel trouble traces back to the PDF itself, not LinkedIn. Blurry slides and broken layouts are export problems, and the "it didn't post as a carousel" issue is almost always a file mistake.

If your slides look crisp in your design tool but soft on LinkedIn, the culprit is usually a low-resolution export or heavy compression. Re-export the PDF at 300 DPI and keep the file comfortably under the 100 MB cap.

Making one LinkedIn carousel is easy. Making one every week, designing slides that get finished, and doing the same across Instagram and TikTok is where it falls apart. This is the gap Autovirality is built to close.

Instead of rebuilding each carousel by hand and uploading it live, you can:

• Start carousels from reusable templates so the structure, the hook, and the slide order copy a layout that already worked.
• Reuse one idea across platforms, turning a LinkedIn document into an Instagram carousel or TikTok slideshow without starting over.
• Queue posts to publish at the right time instead of being at your desk the moment your audience is online.
• Keep a steady cadence by lining up a week of posts in advance and letting the schedule fire.

If you're also fine-tuning the post copy that sits above your carousel, our free LinkedIn text formatter adds bold, italics, and bullet styling that LinkedIn's editor doesn't. You can try the full workflow and turn carousels from a one-off into a habit.

Making a LinkedIn carousel comes down to one shift in thinking: you're not posting in LinkedIn, you're building a PDF and handing it over. Design 8 to 12 same-size slides at 1080 × 1350, export at 300 DPI, and upload it as a document post. That's the whole mechanic.

The reason to bother is that documents are the format LinkedIn rewards most, confirmed by two independent 2026-era studies, not a hunch. Give each slide a reason to be swiped, keep it tight enough to finish, and treat the title as a second headline. The format is already on your side; the work is just making something worth swiping through.

There is no native carousel button. You make one by designing slides, exporting them as a PDF, then on LinkedIn clicking Start a post, then More, then Add a document. Upload the PDF, give it a title, write your post copy, and publish. LinkedIn renders each PDF page as a swipeable slide.

Use 1080 by 1350 pixels (4:5 portrait) for the mobile feed, since it fills the most vertical space, or 1080 by 1080 (square) for a safe cross-platform size. Keep every page the same size or slides get cropped, use body text of at least 24pt, and export at 300 DPI to avoid blur.

Aim for 8 to 12 slides. Richard van der Blom's 2025 algorithm report found 8 to 10 slides perform best, and completion rate now matters, so a tight carousel people finish beats a long one they abandon. The hard limit is 300 pages, but engagement drops off well before that.

Yes. In 2026, Socialinsider found document posts were LinkedIn's highest-engagement format at 7.0%, ahead of multi-image at 6.45%, video at 6.0%, and text at 4.5%. Richard van der Blom's independent 2025 report agreed, putting documents on top at around 6.6%.

Yes, through document posts, which is what people mean by a LinkedIn carousel today. LinkedIn removed a short-lived native carousel feature in December 2023, but uploading a multi-page PDF as a document post was never affected and remains the standard way to publish a swipeable carousel.