I see a title field to change but not file name filed for images in the media library.
That said, even so would it be wise? Probably best to have that done on a hardrive no? but huge amount of work either way.
]]>If you run a multi-author site, then it could be hard to keep an eye on the image filenames.
Automatically Update Image File Names When Saving Posts
Media File Renamer also allows you to automatically update image file names to match image title when saving posts. This feature is not enabled by default, but you can easily enable it by visiting Settings ? File Renamer page.