Man pages matching name fileinfo in section 1:

fileinfo.1.en	debian 10 / leptonica-progs
FileInfo.1.en	debian 10 / topp
fileinfo.1.en	debian 11 / leptonica-progs
FileInfo.1.en	debian 11 / topp
fileinfo.1.en	debian 12 / leptonica-progs
FileInfo.1.en	debian 12 / topp