Automatically Rename Media on Upload plugin has just been released.

This plugin will automatically rename any media files you upload to the Media Library, by adding a prefix to the beginning of the filename based on the filetype.

For example, you can tell it to add the prefix “pic-” to the beginning of all .jpg files that you upload. So uploading an image called car.jpg would get renamed to pic-car.jpg

And since it changes the name of the file, it will also change the “slug” that wordpress uses based on this new name.

You can set an individual/unique prefix for each of the following filetypes:
jpg jpeg png bmp gif tif mp4 avi m4v mov flv mkv 3gp pdf doc docx xls xlsx ppt pptx mp3 ogg wav zip csv txt

You will need to go to the settings page and set the prefix you want to use for each of the filetypes.

The default behavior is that it will NOT rename any uploaded files until you have set the prefix on the settings page.

== Frequently Asked Questions ==

= Can I manually rename the files when I upload them? =
No. In the settings you can set how the filename will be renamed when it is uploaded. File will be automatically renamed during the upload process.

= Can I choose whether a file will be renamed when I upload it? =
No. In the settings you can set how the filename will be renamed when it is uploaded. File will be automatically renamed during the upload process.

= How do I disable renaming files of only certain types? =
On the settings page, you can remove the prefix from the textbox and set it empty/blank for any filetype that you do not want to be renamed when it is uploaded. If a particular filetype has an empty/blank textbox, then it will not be renamed when it is uploaded.

= How do I rename only files of one specific filetype, but not all the other filetypes? =
On the settings page, you can remove the prefix from the textbox and set it empty/blank for any filetype that you do not want to be renamed when it is uploaded. If a particular filetype has an empty/blank textbox, then it will not be renamed when it is uploaded.

= For what filetypes can I modify the prefix for the renaming of the file? =
You can set an individual/unique prefix for each of the following filetypes: jpg jpeg png bmp gif tif mp4 avi m4v mov flv mkv 3gp pdf doc docx xls xlsx ppt pptx mp3 ogg wav zip csv txt

= The filetype I need to rename is not listed. What can I do? =
Submit a support request and I will see if I can get that filetype added for you.

= I have uploaded a file to the Media Library, but it was not renamed? What happened? =
Make sure you go to the settings page and set the prefix you want to use for the particular filetype you are uploading and want renamed. And don’t forget to hit the SAVE button to make sure your changes are saved.