D-FileMU is a free tool which enables you to make changes to filenames for a large number of files quickly and easily. D-FileMU is a handy utility to change large number of files and this is helpful especially when you have lots of digital images to be renamed. D-FileMU does not require any installation, all you need is to run the .exe file.
Features of D-FileMU;
- Adding strings to the beginning and end of the filenames,
- Deleting specified number of characters from beginning or end of the filenames.
- Adding numbers in sequence to the beginning or end of the filenames.
- Changing to upperor lowercase.
- Adding or removing the read only(+r) or hidden(+h) or archive(+a) file attributes.
- Replacing strings with specified string.
- Changing the file extension of filenames and also capitalizing words.
- The program can also be used as a command line utility
Download D-FileMU (Currently the Author’s site is not available)
I would recommend CKRename for this.