Guides · PosterForge Studio

How to make a LinkedIn or Instagram carousel people save

Carousels get saved when each swipe pays off. Most fail for simple reasons: a weak first slide, too much text, or an ending that asks for nothing. These rules keep people swiping to the last slide.

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1. Win the first slide

The cover decides whether anyone swipes. Promise one specific result or name one common mistake, in under fourteen words. Highlight one or two key words so the eye lands on them.

Avoid vague covers like tips for success. Specific beats clever.

2. One idea per slide

Each slide should make one point that someone could screenshot on its own. If a slide needs a paragraph to explain, split it into two slides.

Five to eight slides is enough for most topics.

3. Text that reads on a phone

People read carousels on small screens while scrolling. Use large text, short lines and strong contrast. If you have to shrink the text to fit, there is too much of it.

Use the same layout and colours across slides so the set feels like one piece.

4. Use structure people recognise

Numbered steps, a checklist, a do versus avoid comparison and one big number are easy to scan and easy to save. Mix them so each slide looks a little different.

Only show numbers you can stand behind. Made-up statistics damage trust fast.

5. End with one clear next step

The last slide should ask for one thing: follow, save, comment or visit a link. A QR code helps when the post will also be printed or shown on a screen.

6. Write the post text too

The caption is what people read before they swipe. Open with a strong first line, keep paragraphs short and end with a question or call to action. Add three to six relevant hashtags.

On LinkedIn, upload the carousel as a PDF document so it shows as swipeable pages.

Quick checklist

A specific promise on the cover
One idea per slide
Large text, short lines
Only real numbers
One clear call to action

Questions

What size should a carousel be?

Use 4:5 portrait (1080 × 1350 pixels) for LinkedIn and Instagram feeds. It takes more screen space than a square and works on both.

How many slides should a carousel have?

Usually five to eight. Fewer feels thin; many more and people stop swiping before the end.

Can I make a carousel quickly?

Yes. PosterForge writes the slides, lays them out in one of six looks, adds a QR code that scans and writes the caption, then exports a LinkedIn PDF or Instagram PNGs. It costs 1 credit and guests get 2 free credits every day.

Why upload a PDF to LinkedIn?

LinkedIn shows a PDF document as swipeable pages in the feed, which is how carousels are posted there. Images are shown as a gallery instead.

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