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allowedExtensions

allowedExtensions

Type: string (list of file extensions)
Path: $GLOBALS['TCA'][$table]['columns'][$field]['config']
Scope: Proc. / Display

List of image types (by file extension) which can be cropped. Defaults to $GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext'] which is usually gif,jpg,jpeg,png.