What matters
Notion Page Cover dimensions at a glance
Notion page covers at 1500×600 span the full width of page headers. Users can reposition the vertical crop, so the image needs to look good at multiple vertical offsets.
Custom covers make Notion pages more visually distinctive and easier to navigate, especially in workspaces with many similarly-named pages.
Small images look blurry when stretched to full width. Vertically centered content may get cropped depending on how the user positions the cover.