October 15, 2026
How to Post a PDF Carousel on LinkedIn
The "carousels" you swipe through on LinkedIn aren't a special post type. They're document posts: a PDF (or a slide deck) uploaded to a post, which LinkedIn shows as pages people flick through in the feed. They're one of the best formats on LinkedIn for teaching something step by step, because each swipe is a small commitment to keep reading.
Here's what LinkedIn allows, how to design one that people finish, and how to schedule it.
LinkedIn's rules for document posts
From LinkedIn's own help page:
- File types: PDF, PPT, PPTX, DOC and DOCX.
- Size: up to 100 MB and 300 pages.
- A title: LinkedIn asks you to "add a title to your document to let members know what your document is about." It shows on the document in the feed.
- Flatten your PDF. "PDFs with multiple layers must be flattened or merged." Exporting as a standard PDF from Canva, PowerPoint or Google Slides does this.
- One page size. "PDFs with multiple sized pages must be fit to the same page size." Mixed sizes are the most common reason an upload looks wrong.
- No video or animation. They aren't supported inside documents.
- No swaps later. Once posted, you can edit the post's text but not replace the document. Check every page before it goes out.
- Where: from your own profile, a Group or a LinkedIn Page.
How to design a carousel people finish
Pick a page shape and stick to it. Square (1080 × 1080) or portrait (1080 × 1350) both work. Portrait takes up more of the screen on a phone, which is where most people will swipe.
Make page one the hook. It's the only page everyone sees. State the payoff plainly: "7 mistakes that kill a LinkedIn profile" beats a logo and a title.
One idea per page. A heading and a sentence or two. If a page needs a paragraph, it's two pages.
Big text. It's read on a phone, inside the feed. If it's hard to read on your phone at arm's length, it's too small.
Keep it to the point. LinkedIn allows 300 pages; your reader doesn't. Use as few pages as the idea needs, and cut any page that only repeats the one before.
End with one ask. The last page should say what to do next: follow for more, comment with a question, or visit a link (in the post text, where links can be clicked).
Write the post text too. The text above the document is what makes someone stop. Lead with why it's worth swiping.
How to schedule a PDF carousel in PostStage
1. Open the LinkedIn composer. Under What do you want to share?, write the post text.
2. Make the first line your title. PostStage uses the first line of your text (up to 100 characters) as the document's title on LinkedIn, so make it the one-line summary of the carousel.
3. Add the PDF. In Image or PDF (optional), drop in your PDF, up to 100 MB. PostStage shows the file name and confirms it will post "as a swipeable document on LinkedIn".
Designing in Canva? On paid plans, open Canva from the composer, pick your design, and choose Import all pages as one PDF. The whole design comes in as a single document, ready to post.
4. Pick a time and schedule. Press Schedule LinkedIn post. It goes out at the exact second you set.
A limit to know: PostStage posts documents to personal LinkedIn profiles. Company Pages aren't supported yet.
When to post it
If your audience is people at work, try the working day, when they check LinkedIn between tasks, and compare a few times. More important than the hour: post when you can answer comments for the first hour, because early replies keep a conversation going.
Frequently asked questions
How do I make a carousel post on LinkedIn? Upload a PDF (or a slide deck) as a document post. LinkedIn shows each page as a slide people swipe through.
What's the maximum size for a LinkedIn document post? 100 MB and 300 pages.
What size should LinkedIn carousel pages be? Every page must be the same size. Square (1080 × 1080) or portrait (1080 × 1350) are the usual choices.
Can I schedule a LinkedIn PDF carousel? Yes. In PostStage, add the PDF in the LinkedIn composer and pick a time. It posts to your personal profile.
Can I change the PDF after posting? No. LinkedIn lets you edit the post's text, but not replace the document.