Which aspect ratio should you use?
Portrait (1080x1350) gets the most engagement. Tall images take up more vertical space in the LinkedIn feed, which means more screen real estate and more time in view as users scroll.
Square (1080x1080) is the safest choice. It displays consistently on both desktop and mobile and works well for infographics, quotes, and branded content.
Landscape (1200x627) is best for link previews. When you share a URL, LinkedIn generates a landscape preview. Match this ratio if you're creating a custom image to go with a link post.
Avoid non-standard ratios. LinkedIn will crop images that don't match its supported aspect ratios, potentially cutting off important content.
LinkedIn image tips for higher engagement
Use text on images sparingly. LinkedIn's algorithm may reduce reach for posts with heavy text overlays. When you do add text, keep it large and high-contrast for mobile readability.
Branded templates boost recognition. Create a consistent visual style with your brand colors, fonts, and logo placement. When followers see your posts in the feed, they should recognize them instantly.
Infographics perform well. Data visualizations, step-by-step guides, and numbered lists in image format drive saves and shares. Use portrait or square orientation to maximize visibility.
Include alt text. LinkedIn supports alt text for images. This improves accessibility and gives the algorithm more context about your content.
LinkedIn carousel posts (document posts)
LinkedIn's most engaging format is the document carousel — a PDF uploaded as a post that users can swipe through.
Best size: 1080x1350 pixels per slide. This fills the maximum feed space on mobile and gives you ample room for content.
You can include up to 300 pages, but 5-15 slides is the sweet spot for engagement. Each slide should deliver one clear idea or data point.
Export as PDF. Design your slides in any tool (Canva, Figma, PowerPoint), then export as a single PDF. Upload it as a document post, not an image post.