LinkedIn post image size
1200 × 628 px · 1.91:1 · post
1200 × 628
The details
LinkedIn's single-image spec recommends 1.91:1 at 1200×628 for delivery across desktop and mobile; 1200×1200 square also runs everywhere, while vertical ratios like 4:5 and 2:3 are mobile-only.
Source: business.linkedin.com · checked 2026-07-04