Generate Thumbnails Generate Thumbnails from all the images by asynchronous processing. Generate Thumbnails from select the images by asynchronous processing. If you are an administrator, it will generate thumbnails for all images, otherwise it will generate thumbnails for the images owned by each user. The following plugin adds a function for generating thumbnails. Select the thumbnails and functions to disable it. Disable Generate Thumbnails Specify the ratio of thumbnails generation. Ratio Thumbnails Size