Hi,
Then, with custom view overrides, you can change the image display code to handle translation overrides.
For example, in the product / show_block_product_files view file, you can change:
$file->file_name
to :
hikashop_translate($file->file_name)
Then, add your translation override in the language files overrides under the Languages tab of the HikaShop configuration.
For example if the name of the file is "HikaShop in English", you can add the fr-FR override:
HIKASHOP_IN_ENGLISH="HikaShop en Français"