LinkedIn Document Post: Publish a Carousel That Gets Read
A LinkedIn document post is a post with a PDF (or PPT, DOC) attached, which LinkedIn shows as a swipeable carousel in the feed with a page counter and a full-screen reader. It is the only way to publish a carousel on LinkedIn, and it rewards the same things an Instagram carousel does: a hook on page one, one idea per page, six to twelve pages, and a post body that stands on its own. Here is how to publish one and what to put in it.
How do I create a document post?
On the web:
- Start a post and choose the document icon (the page symbol) in the toolbar.
- Upload a PDF. Add a document title; it shows above the carousel and in search.
- Write the post body, then publish.
On the mobile app, the document option sits behind the “more” button in the post composer. The file comes from your phone’s files, so export the PDF to a cloud folder first.
The PDF should be portrait 4:5 (1080 by 1350 pixels), one page per slide, well under 100 MB. LinkedIn carousel PDF size has the full specification and the export steps.
What makes a document post get read?
Page one is the hook. It is the preview in the feed, cropped to the page ratio. A page that reads “Introduction” or shows a logo gets scrolled past. Put the claim, the question or the number on page one in large type.
The post body is the second hook. People read the text above the document before they open it. Two or three lines that say what the document gives them, and why now, do more for reads than any design choice. Do not repeat page one word for word; add the context or the result.
One idea per page. The full-screen reader shows one page at a time with a “next” arrow. A page with three ideas is three pages that lost two arrows.
A close that asks for one thing. Comment, follow, or the link in the post body. Links inside the PDF are not clickable in the feed, so the last page says what to do and the post body carries the link.
How long should the document be?
Six to twelve pages. The reader shows “4 / 9” at the top, and that number sets expectations the same way the slide counter does on Instagram. Long reference documents (a 30-page guide) can work as a download, but they are a different post: a lead magnet, not a carousel.
What should the post body say?
A structure that works:
- Line 1: the claim or question, in your own words (not the title of the document).
- Line 2 to 4: why it matters or what changed for you.
- Line 5: “Swipe through for the X steps” or similar, so people know the document is the content.
- Last line: one call to action, with the link if there is one.
Keep hashtags to three or fewer at the end. The document title you entered at upload is separate from the body; make it the same as page one’s headline so search and feed agree.
What are the common mistakes?
| Mistake | What happens | Fix |
|---|---|---|
| Landscape pages | A thin strip in the feed, unreadable text | Export at 4:5 or square |
| A cover page | No hook; reads as a brochure | Page one is the strongest line |
| Tiny text | Fine on a laptop, invisible on a phone | Body text 36 px or larger on a 1080 px page |
| Links in the PDF | Nobody can click them | Link in the post body, CTA as text on the last page |
| Mixed page sizes | Letterboxing on some pages | Same size on every page |
| Posting a slide deck as is | 16:9, forty pages, speaker-note tone | Rewrite as a six-to-twelve-page carousel |
Can I reuse an Instagram carousel as a document post?
Yes, and it is the fastest way to a steady LinkedIn presence. The same 4:5 slides that go to Instagram as PNGs go to LinkedIn as one PDF. The caption changes: LinkedIn readers want the context and the takeaway in the body, where Instagram readers want a short line and the carousel. Carousel post ideas that compare, prove or teach travel best; confession-style stories do better on Instagram.
Karou renders both outputs from the same slides: a ZIP of PNGs and a PDF, one page per slide at 1080 by 1350, come back together every time the create tool runs. Ask Claude for the carousel once, upload the PNGs to Instagram and the PDF to LinkedIn.
How do document posts perform compared to text posts?
They keep people on the post longer, which is the signal LinkedIn’s feed rewards, and they get saved more than text. They are also more work to make, which is why most people post one a month and then stop. The way to keep it up is to stop treating each one as a design project: fix the template, write the slides as text, render, upload. A weekly carousel system describes that routine.
FAQ
Can I edit the document after posting?
You can edit the post text but not the file. Check the PDF at phone size before posting.
Is there a page limit?
300 pages and 100 MB. A carousel should use a fraction of both.
Do document posts work from a company page?
Yes, the same way. Company pages tend to post brochures; a page-one hook stands out there.
Does LinkedIn index the text inside the PDF?
The document title and the post body are what search sees reliably. Put the keywords there, not only on the slides.