Current Page specification
LinkedIn currently recommends 1512 × 256 pixels for a Page cover image and accepts PNG or JPEG. Its help documentation also warns that cover images can be adjusted to fit different screens and recommends keeping key details away from edges, especially the lower-right corner.
Official source: LinkedIn Help — Image specifications for your LinkedIn Pages and Career Pages.
Design for the shallow ratio
When vertical space is scarce, stacked copy becomes expensive. Prefer a single strong line, a compact secondary line and one recognizable brand mark. If you need several paragraphs, the cover is the wrong surface.
What works well on a Company Page cover
- Current product or release positioning.
- A short hiring message.
- A conference or event presence.
- A temporary campaign line.
- A simple category statement with a logo.
These are useful because the message can be understood quickly without requiring tiny type or edge-to-edge placement.