The Ultimate Guide to LinkedIn Post Image Sizes: Master Dimensions for Maximum Engagement

Your content can be exceptionally written, packed with industry insights, and structured with hooks that pull readers in—yet if your accompanying image is blurry, awkwardly cropped, or distorted, your engagement will plummet.

On LinkedIn, visual presentation directly impacts credibility. Because the platform’s feed is a fast-moving stream of text, graphics, and video, your image serves as the stopping power. Getting the dimensions right ensures your visuals look sharp, professional, and un-cropped across both desktop monitors and smartphone screens.

This comprehensive guide breaks down the exact LinkedIn post image sizes you need to know, along with technical specs and strategy tips to elevate your professional brand.

Quick Reference: LinkedIn Post Image Cheat Sheet

| Post Format | Optimal Dimensions (Pixels) | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Portrait Post | $1080 times 1350$ | $4:5$ | Maximum mobile feed dominance, infographics, step-by-step guides |
| Square Post | $1080 times 1080$ (or $1200 times 1200$) | $1:1$ | Versatile feed posts, quotes, product showcases, carousels |
| Landscape / Link Share | $1200 times 627$ | $1.91:1$ | Link previews, broad landscape photography, announcements |
| Carousel (Document Slide) | $1080 times 1080$ | $1:1$ | Multi-slide PDFs, educational breakdowns, portfolio showcases |
| Profile Photo | $400 times 400$ | $1:1$ | Personal headshot (displayed with a circular crop) |
| Personal Banner | $1584 times 396$ | $4:1$ | Profile background branding |

Deep Dive: Choosing the Right Feed Image Size

The dimensions of your feed image dictate how much screen real estate your post commands. With over 60% of LinkedIn users browsing via mobile devices, optimizing for vertical viewing space is a game-changer.

1. Portrait Posts ($1080 times 1080$ up to $1080 times 1350$ pixels) — The Engagement Driver

• Aspect Ratio: $4:5$
• Why use it: Portrait images stretch vertically down the mobile screen, pushing competitor posts out of view while a user considers your content.
• Best for: Infographics, data visualizations, heavy text-and-graphic combos, and storytelling frameworks. If you want maximum visibility and dwell time, portrait is your go-to format.

2. Square Posts ($1080 times 1080$ or $1200 times 1200$ pixels) — The Reliable All-Rounder

• Aspect Ratio: $1:1$
• Why use it: Square formats render identically and cleanly on both desktop monitors and mobile apps without suffering awkward automated crops.
• Best for: Single-photo thought leadership cards, motivational quotes, square product photography, or cross-platform content originally built for Instagram.

3. Landscape Posts ($1200 times 627$ pixels) — The Link Share Standard

• Aspect Ratio: $1.91:1$
• Why use it: This is the native layout LinkedIn expects when you drop an external URL into a post and a link preview card is automatically generated.
• Best for: Sharing blog posts, news articles, website links, or wide corporate event photos. (Pro tip: If your link preview image is pulling up cropped or blurry, check your website’s Open Graph tags).

Beyond Standard Posts: Profile & Page Asset Sizes

Your personal profile or company page is your digital storefront. Using mismatched banner or profile sizes results in pixelation or critical text getting cut off.

• Profile Picture: Upload at $400 times 400$ pixels ($1:1$ ratio). Remember that LinkedIn applies a circular mask, so keep your face or central logo strictly in the middle and away from the corners.
• Personal Background Banner: Use $1584 times 396$ pixels ($4:1$ ratio). Keep in mind that your circular profile photo overlaps the bottom-left portion of the banner on desktop (and shifts on mobile), so avoid placing logos or crucial text in that corner.
• Company Page Banner: Use $1128 times 191$ pixels (much narrower than the personal banner). Design specifically for this strip rather than reusing your personal asset.

Technical Specifications & Best Practices

To keep your images loading lightning-fast and looking razor-sharp, stick to these rules of thumb:

Important Technical Rules:

• Maximum File Size: Keep image files under 5MB for feed posts (and up to 10MB for specific multi-page document carousels).
• File Formats: Use PNG for graphics, charts, and images containing text (to prevent compression artifacts). Use JPEG or WebP for standard photographs.
• Color Space: Design your assets in RGB color mode rather than CMYK to ensure digital color accuracy across all displays.

Pro-Tips for Polished LinkedIn Visuals

1. Mind the Safe Zones: Keep vital text, headlines, and call-to-actions comfortably away from the absolute edges of your graphics.
2. Prioritize Readability: If you include text inside your image, ensure the font size is large enough to read easily on a smartphone screen (aim for a minimum of 24px equivalent).
3. Always Preview: Before pushing a major campaign or important post live, upload the asset as a draft or test view it on your mobile device to catch any alignment errors firsthand.