Media File Renamer Pro
The Pro users are given a few more features like manual renaming, renaming depending on the post the media is attached to, logging of SQL queries, and a few more options. With the Pro, a good process is to actually let the plugin do the renaming automatically (like in the free version) and do manual renaming for the files requiring fine-tuning.
It automatically renames your media filenames depending on their titles. When files are renamed, the references are also updated (posts, pages, custom types, and metadata).
A new column in the Media Manager will display the new ideal filename to you, and a button will allow you to rename it straight away. You can lock and unlock the renaming automatic process through little icons. By default, this is done automatically, depending on the title of your media. If you have the Pro version, this can also also be done based on the post’s title (page or any other custom type) the media is attached to.
There is also a little dashboard called File Renamer in Media that will help you rename all your files at once.