How To Turn a Newsletter Into a LinkedIn Carousel Post

What LinkedIn document posts support

LinkedIn lets members and Pages upload documents that readers can move through inside the feed. PDF, PowerPoint, and Word formats are supported, with a 100 MB file-size limit and a 300-page limit. Those are technical ceilings, not editorial targets: a newsletter carousel should stay focused on one useful idea.

• Export to PDF when possible for the most predictable result.
• Use pages with one consistent size throughout the document.
• Treat every page as one step in a single argument, not as a dump of the whole issue.

You do not need new ideas for a carousel. You need the ideas from your newsletter restructured into slides.

Pick one linear argument from the issue

A carousel needs a clear through-line. Pick one argument, framework, or step-by-step process from the newsletter instead of trying to condense the whole issue. The best carousel topics are ideas that naturally break into sequential points: a checklist, a before-and-after, a set of mistakes, or a short workflow.

• Choose an idea that breaks into roughly five to ten distinct steps or points.
• Drop tangents — the carousel should move forward with every slide.
• Save the rest of the issue for separate text posts or X threads.

Structure the slides for scanning

Each slide should carry one idea, written in text large enough to read on a phone. The first slide is the hook — it determines whether anyone swipes. The middle slides deliver the value. The last slide lands the takeaway and points readers to the full issue.

• Slide 1: a specific promise or bold claim that earns the first swipe.
• Slides 2–8: one point per slide, clear and scannable, no walls of text.
• Final slide: the takeaway and a soft CTA to read the full newsletter.

Keep the design simple

A document post needs to remain readable as a feed preview and as a downloaded PDF. Use large text, clear contrast, and one layout system. LinkedIn recommends flattening layered PDFs, keeping page sizes consistent, and using secure hyperlinks.

• Use portrait orientation so slides fill more of the mobile feed.
• Keep text large enough to read without zooming.
• Use one consistent layout across all slides instead of redesigning each one.
• Flatten complex PDF layers and test every link before upload.

Use text posts to set up the carousel

The LinkedIn post text that accompanies the carousel matters too. Use it to frame the problem the carousel solves or to tease the key insight. The text post and the carousel should work together, not repeat each other.

• Open the text post with the problem the carousel addresses.
• Do not summarize every slide in the text — let the carousel do that job.
• End the text with a reason to swipe, not just 'check out my carousel.'

Review the final PDF before posting

LinkedIn lets you edit a document post's description or remove the post, but it does not let you replace the uploaded document. Review the exported PDF as carefully as the newsletter itself before publishing.

• Check the title, page order, spelling, and final call to action.
• Open the PDF on a phone-sized screen and confirm the type remains readable.
• Use the same page dimensions throughout so LinkedIn does not have to reconcile mixed sizes.

Where Letterflow fits

Letterflow generates LinkedIn post drafts from the finished newsletter, including the text content that goes into each slide or accompanies the carousel. Start from the issue, get voice-matched copy for each point in the argument, then drop that text into your carousel template.

• Use Letterflow to extract the strongest argument and break it into slide-sized points.
• Edit the generated text for the concise, scannable style carousels need.
• Pair the carousel with a Letterflow-drafted text post for the accompanying LinkedIn copy.