LinkedIn Portrait 1080 x 1350

Validate your 1080x1350 LinkedIn portrait ad for mobile feed compliance. Verify your 150KB weight limit and dimensions before you go live.

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JPG, PNG, WebP (Max 150KB Limit)

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The Complete Advertiser’s Guide to the 1080×1350 LinkedIn Portrait Post

Much like Instagram, LinkedIn has fully embraced the vertical scroll. While the classic 1200×627 link share is great for articles and sponsored content, the 1080×1350 Portrait Image has quietly become the undisputed king of organic reach and engagement on LinkedIn’s mobile feed.

Why Use 1080×1350 on LinkedIn?

Because the vast majority of professionals now browse LinkedIn on their mobile devices, a 1080×1350 image takes up maximum vertical screen real estate. When your post is taller, it physically pushes competing posts out of view and keeps the user’s focus entirely on your content.

Perfect for Infographics: The taller aspect ratio gives you plenty of room to design step-by-step carousels, lists, or data-heavy infographics without the text becoming too small to read.
Increased Dwell Time: Larger images take longer to scroll past, which sends a positive engagement signal to the LinkedIn algorithm.
Mobile Dominance: It provides a native, full-screen feel that square or landscape images simply cannot match on a smartphone.

The Official Specs

Dimensions: 1080 pixels (width) by 1350 pixels (height).
Aspect Ratio: 4:5 (Vertical).
File Type: JPG or PNG (PNG is highly recommended for text-heavy graphics to prevent blurring).
Max File Size: 5MB.

The Desktop Display Caveat

While the 1080×1350 format is flawless for mobile users, it’s worth noting that LinkedIn’s desktop interface may occasionally add subtle white or gray padding to the sides of vertical images to fit them into the desktop feed. Because mobile traffic drives the highest engagement, this minor desktop padding is well worth the massive mobile advantage!