LinkedIn Carousel Size (2026): PDF Size, Limits and a Free Calculator

LinkedIn carousel sizes at a glance

What LinkedIn says (Help Center, checked on 10 Nov 2026):

• Documents accept PDF, PPT, PPTX, DOC and DOCX.
• Up to 100 MB and 300 pages.
• If pages have different sizes, they must be fit to the same page size.
• Converting to PDF gives the highest quality.
• One document per post.

The pixel sizes in the table are our recommendations. LinkedIn does not specify them.

Portrait or square for LinkedIn?

Portrait. A 4:5 page fills more of a phone screen, so text can be bigger. Use square if you plan to reuse the same slides on Instagram. Use landscape if you want a presentation-deck look. Whichever you pick, keep it the same on every page.

Make the PDF

1. Design every page at the same size (1080 × 1350 px for portrait).
2. Export one multi-page PDF. Give the file a readable name, because it appears as the document title.
3. Open the PDF on your phone once to check page order and text size.
4. On LinkedIn, start a post, add the document, write the post text and publish. On mobile the path is Post, then More, then Document.

SuperCarousels exports PDF, so you can upload the file as it comes out of the editor. For the full publishing steps, see how to post a carousel on LinkedIn.

Export a 1080 × 1350 px PDF from SuperCarousels, then add it to a LinkedIn post as a document.

Safe margins

A good rule of thumb on a 1080 × 1350 page: about 80 px on the sides and 100 px at the top and bottom. Small text near the edge is the first thing to get lost on a phone. The calculator draws the margin for you.

Common mistakes

• Mixed page sizes. LinkedIn requires the same size on every page.
• Tiny text. If you can't read it on a phone at arm's length, it's too small.
• Huge files. Stay under 100 MB. Export for screen, not for print.
• Animations in the PDF. Videos and other animations in documents aren't supported and display as static images.
• Uploading in the wrong order. Open the PDF and check the pages before posting.
• More than one document. You can add only one document to a post.

Our recommendation

We recommend 1080 × 1350 px because a portrait page takes more of the phone screen and lets text be larger. This is a design recommendation, not a LinkedIn rule. If most of your readers are on desktop, a landscape page is a fair alternative.

Make the carousel itself

Once you know the size, the slow part is writing the pages. SuperCarousels writes the script and designs every slide from your idea, so you edit instead of starting from a blank page. The editor exports PDF, PNG and video. You download the file and post it on LinkedIn. Create this carousel with AI →