Man pages matching name cvtbatch in section 8:

cvtbatch.8.en	debian 10 / inn
cvtbatch.8.en	debian 10 / inn2
cvtbatch.8.en	debian 11 / inn
cvtbatch.8.en	debian 11 / inn2
cvtbatch.8.en	debian 12 / inn
cvtbatch.8.en	debian 12 / inn2