Before uploading event images, use the guidance below as a starting point. HeySummit will resize and crop images in different places, so clean source files with the right aspect ratio usually matter more than exact pixel-perfect dimensions.
As a general rule, compress images for web use, avoid unnecessary whitespace around logos or headshots, and keep files as small as practical for faster page loading.
Recommended sizes
Event logo and white logo
Added in Event Setup > Branding & Content under Logos and Graphics. Use a rectangular logo rather than a square one, with a minimum width of 500px. A full-colour logo works best for light backgrounds, and the white logo is used in dark-header situations.Favicon
Added in Event Setup > Branding & Content. Use a 32x32px PNG.Speaker headshots
Added or updated from Content > Speakers when creating or managing a speaker. Use a square 500x500px image.Social sharing images
Used for the Primary Promo Image, Global Speaker/Talk Promo Image, speaker-specific promo images, sponsor promo images, and talk/session social sharing images. Use 1200x628px so the image displays well on social platforms.Page header or holding images
For content pages that use a large header image, use 1280x720px (16:9). Keep important text or faces away from the edges because some layouts may crop the image.Gallery images
Gallery images can use portrait, landscape, or square aspect ratios. The full image is shown when opened, but thumbnails may be cropped square. Keep gallery images under 10MB.Custom category or track icons
Use square images no larger than 500x500px. For the cleanest visual result, either use custom icons for all categories or use HeySummit's built-in icon library for all categories, rather than mixing both styles.
Where social sharing images are added
Event-wide Primary Promo Image: Event Setup > Branding & Content.
Global Speaker/Talk Promo Image: Event Setup > Branding & Content.
Speaker-specific promo image: Content > Speakers > manage the speaker.
Talk/session-specific social sharing image: Content > Talks > manage the talk, then update the media step.
If your event-site logo looks too small in the public header, first check that the logo artwork itself is tightly cropped with minimal empty space. You can also adjust public header logo sizing from the Theme Editor.