Thread:EvergreenFir/@comment-10771297-20130708035920/@comment-4904721-20130708180504

if you use the "Upload a new version of this file" found on the image's page, it will change for the whole site.

You can rename images the same way you rename article pages. You go up to the "Edit" button, drop down the menu, and choose "rename". You have the option of "Leave a redirect behind". This will allow you to rename the image without having to update all the galleries. Use this option if the image is used in a lot of places. If not, please change the name on the pages it's used.