Bot Editor file size: Due to the technical specification of Messenger and LINE, the size of a single file (video, image, card containing image) cannot exceed 2 MB.

Super 8 Platform file size: Due to the technical specification of Messenger and LINE, the size of a single file (video, image, card containing image) cannot exceed 5 MB.

Image Dimension: 960x500 px is recommended.

Image Ratio: Facebook 1.9:1, LINE 1.5:1.

The best practice we recommend is to use Facebook's 1.9:1 design image, but center the important elements, so when the image is displayed on LINE, the extra will be automatically cropped off.

Hope the above information helps you!

If there are other questions, please feel free to contact the online customer service through "Facebook Chat Plugin" at the bottom right of the Super 8 platform.

Super 8 Messenger: https://m.me/no8.io

Super 8 Line@: https://line.me/R/ti/p/@im888