TYPO3 Core

It is possible to set some text in sys_file_metadata. Some of this can be used in the frontend, such as "description", "caption" and "alternative". While it is possible to override some texts when adding the files and these texts can be localized, it is not possible to localize the record sys_file_metadata.

Being able to localize some fields in sys_file_metadata would have the advantage, you would not have to nearly always override them in the translation.

sys_file_metadata already have language fields (sys_language_uid etc.) but they are attached to pid=0 and there is no way to translate pid=0 currently. Also, making this available for editors would make it necessary to handle permissions in file list (which is attached to the folder, not the page).

See also #83970 and thinking about the best default TCA setttings (e.g. showSynchronizationLink) for fields of type "file"