How to Post a Carousel on LinkedIn (Step by Step)

The single most common thing that trips people up: they look for a "carousel" option on LinkedIn and can't find one. That's because there isn't one. What everyone calls a LinkedIn carousel is a **document post** - a normal PDF, uploaded as a document, that LinkedIn renders as swipeable pages. Once you know that, posting one takes about a minute.

Here's the whole flow.

Step by step

• →Export your carousel as a single PDF. In Reathy, that's one click - the whole carousel becomes one PDF, already the right size.
• →On LinkedIn, click Start a post (on desktop or the mobile app).
• →Click the ••• more icon or the paperclip, then choose Add a document.
• →Upload your PDF and give it a short title. The title becomes the document's file name and shows above the carousel, so make it a hook, not "Untitled".
• →Write your post text above it (the first line is what shows before "see more"), then click Post.

The file rules that matter

Two things decide whether it looks sharp or awkward: the shape and the file. Get these right and the upload just works.

Why the shape matters so much

Most people read LinkedIn on a phone. A portrait 4:5 PDF fills far more of the screen than a landscape one, so it stops the scroll and is easier to read. If you export a wide, landscape PDF, it shows up as a thin strip that nobody swipes. When in doubt, go portrait. The full breakdown of sizes and specs is in its own guide.

Common problems (and fixes)

• →"There's no carousel option." Correct - use Add a document and upload a PDF. That is the carousel.
• →"It posted as a link/thumbnail, not a carousel." You attached the PDF as a link or image. Remove it and use Add a document instead.
• →"It looks tiny / cut off." Your PDF is landscape or an odd size. Re-export at portrait 4:5 or square 1:1.
• →"The pages are blurry." The PDF was exported at low resolution or a screenshot was used. Export a proper vector/high-res PDF - Reathy does this by default.

Make the carousel in a minute, then post it

The fastest path: write your slides as text in Reathy, pick a theme, export the PDF at portrait 4:5, and follow the four steps above. No design tools, and the file comes out the right size so the upload just works.