The best LinkedIn carousel size (2026)
A LinkedIn carousel is a document post: a PDF (or a PowerPoint or Word file) shown page by page. LinkedIn takes files up to 100 MB and 300 pages.
| Shape | Page size | Good for |
|---|---|---|
| 4:5 portrait | 1080 × 1350 px | Fills the most of the feed on phones. The usual carousel size. |
| 1:1 square | 1080 × 1080 px | Fills the feed well on phones and computers. |
| 16:9 landscape | 1920 × 1080 px | Presentation slides. Small on phones, where many people read. |
How to check your slides and make the PDF
- Add your slides. Pictures, or the PDF you already have. Each PDF page becomes a slide. No file at hand? Try the sample.
- Read the checks. “Ready to post?” shows pages of another shape, pictures under 1080 px, and whether the text in your PDF is real text.
- Pick the size. 4:5, 1:1 or 16:9, then crop odd pages to fill or fit them inside on a colour or a blurred background.
- See the post. “In the post” shows the document as LinkedIn does: pages side by side on a computer, one at a time on a phone.
- Download the PDF. One page per slide, all the same size. Upload it to LinkedIn as a document and give it a title.
Everything happens in your browser: your slides and PDFs are never uploaded.
How LinkedIn shows a document
- The first page sets the frame. Pages of another shape are shown smaller inside it, with bars around them.
- The title shows on the post. LinkedIn puts the document’s title and page count on the first page. Keep the title short.
- Phones show one page at a time. On a computer several pages show side by side, so the first two pages are seen together.
Sharp pages on LinkedIn
- Keep real text. A PDF exported from Canva, PowerPoint or Google Slides keeps its text as text, sharp at any zoom. A PDF made of pictures looks soft when people zoom.
- Pictures with enough pixels. A picture that fills a 1080-px page needs about 1080 px across. The LinkedIn PDF checker measures each one.
- Big enough text. Text under about 24 px on a 1080-px page is hard to read on a phone.
Free, and what the app adds
This tool is free, with no account and no limit. aiCarousels writes and designs LinkedIn carousels in 4:5 with real text, and downloads the PDF in HD (2,160 px wide), ready to post.
