Travefy has multiple places where you can upload an image. This article will outline optimal image sizes for uploading a logo to your profile, adding an image to an Event and updating the cover photo of an itinerary.
Uploading a Logo to Your Profile:
When uploading a logo to your profile, the optimal size is at least 192px and it is recommended that the height of the image should be 120px or more.
Event Thumbnail Images:
The optimal size for thumbnail photos added to an Event is 1832x1374px.
The recommended size for a cover photo is at least 1200x900. Check out this article for more details: What is the best size for the itinerary cover photo?