LinkedIn Carousel PDF: How to Create and Upload One

LinkedIn Carousel PDF Specs

Before you open any design tool, lock in these numbers. Building outside these specs means your carousel will either be rejected on upload or display poorly once live.

PDF is the preferred format. Unlike PowerPoint, PDF embeds your fonts — which means the layout you designed is the layout LinkedIn renders. PowerPoint files use system fonts on LinkedIn's servers, and if your custom font is not installed there, LinkedIn substitutes a default and your line breaks shift.

Step-by-Step: Create a LinkedIn Carousel PDF

Method 1 — Canva (Easiest)

1. Open Canva and create a new design. Choose "LinkedIn Post" (1080×1080px) or "Instagram Post" for 1:1. For 4:5 portrait, use a custom size of 1080×1350px.

2. Design each slide on a separate page. Keep one idea per slide. Use a minimum 32px font for body text and 60px+ for headlines to ensure readability on mobile.

3. Export as PDF Print (not PDF Standard). "PDF Print" preserves sharpness better. Under the export dialog, select PDF and enable "Compress PDF" only if you are above 100MB.

4. Check the file size before uploading. If it exceeds 100MB, return to Canva and reduce image quality on any embedded photos.

Method 2 — PowerPoint / Keynote

1. Set slide dimensions to 1080×1080px (File → Page Setup → Custom). PowerPoint's default is 13.33×7.5 inches — change this before designing anything.

2. Use web-safe fonts — Arial, Georgia, or any Google Font you have installed. Custom fonts will be substituted when LinkedIn renders the file.

3. Export as PDF (File → Export → PDF). In PowerPoint, set "Optimize for: Standard (publishing online)" for better file size control.

Method 3 — Carouselli (Fastest)

Type a topic, choose your slide count and platform, and Carouselli writes and designs every slide with consistent branding. Export directly to PDF — no manual sizing, no font issues. The PDF is generated at 1080px and ready to upload. See the full workflow in our guide on how to post a carousel on LinkedIn.

How to Upload a PDF Carousel to LinkedIn

1. Start a new post on LinkedIn. Click the document icon (looks like a page with a folded corner) below the text field. On mobile, tap the "+" and select "Document".

2. Select your PDF file. LinkedIn will process it — this takes 10-30 seconds for a typical 10-slide carousel.

3. Add a title. LinkedIn prompts you for a document title that appears above the carousel. Make it keyword-rich and descriptive — this title is indexed by LinkedIn's internal search.

4. Write your caption. Your caption appears above the carousel in the feed. It should hook the reader and give them a reason to swipe. The first two lines show before the "see more" cutoff.

5. Post. LinkedIn displays your first slide as the preview in the feed. Anyone who clicks sees the full carousel as a swipeable document.

Common LinkedIn Carousel PDF Mistakes

Wrong slide dimensions

Building your slides at Canva's default "Presentation" size (1920×1080px) and expecting them to display as square carousels is a common mistake. LinkedIn crops or letterboxes non-standard dimensions. Always set 1080×1080px before you start designing.

Text too small to read on mobile

LinkedIn viewers swipe on phones. Body text at 12px on a 1080px canvas renders as roughly 4px on a 375px mobile screen — completely unreadable. Use 32px minimum for body text and 60-80px for headlines. Test by zooming your PDF to 33% and checking if you can still read it.

File too large

High-resolution photos embedded in each slide can push PDF file size past 100MB. Compress embedded images to 80% JPEG quality inside Canva or use a tool like Smallpdf before uploading. LinkedIn will reject files over 100MB with a generic error message.

Relying on custom fonts in PowerPoint

LinkedIn renders PowerPoint on its own servers without your installed fonts. Anything outside Arial, Times New Roman, Calibri, or standard Google Fonts will be substituted. Always export to PDF to lock your fonts in.

PDF vs PNG for LinkedIn Carousels

You can also upload carousels as a ZIP of PNG images — LinkedIn accepts both. PDFs are generally easier to manage because one file contains all slides in order. PNGs give you more control over image quality per slide but require zipping first.

For most creators, PDF is the right default. Tools like Canva, PowerPoint, and Carouselli all export PDF natively, and the quality is indistinguishable from PNG when slides are text-heavy rather than photo-heavy.

For more on LinkedIn carousel specs and what affects quality, see our full guide on LinkedIn carousel size. And if you want AI to write the content before you design, Carouselli's LinkedIn carousel maker handles both in one workflow.