How to recover accidently deleted files from RedHat file server

one of my friend accidently deleted all files (jpg and pdf) from file server by using rm -rf command .is there is a way to recover those files with actual file names? key points - 1. there is no backups for restore 2. partition format is ext4 we tried following solutions. 1. testdisk - recovered few files only (with actual file name) 2. photorec - recovered lots of files with useless .txt files (without actual file names) 3. foremost - recovered pdfs and jpgs without file names