Albin

With this pluginyou can face two goals:
· File Replace Sometimes you have an image used in several spots (slider, gallery, feature image, …) and if you remove it and upload it again, as it gets a new ID, you will need to select the new one all around but you could forget a place. To avoid it, use this plugin.
· File Rename Sometimes we upload a file as it comes from the mobile camera and later we realize that the file doesn´t have a ver SEO-Friendly name. Here you can rename the file.
None of both functionalities will breake any link where the image is pointed by its ID but this action doesn´t do a Search and Replace along the post entries.

FileRenameReplace

This plugin let the user renaming or replacing files without breaking links.

neoslab

Medias Toolbox allow you to sanitize and rename automatically media files during upload using severals predefined patterns. Furthermore Medias Toolbox offer you the option to compress your JPG and PNG image file to optimize your website and page loading time.
<h3>License</h3>
Good news, this plugin is free for everyone! Since it’s released under the GPL, you can use it free of charge on your personal or commercial site.

Medias ToolBox

Do what the title say

Medias Toolbox allow you to sanitize and rename automatically media files during upload.

FileRenameReplace vs Medias ToolBox