Man pages matching name ppdmerge in section 1:

ppdmerge.1.en	debian 10 / cups-ppdc
ppdmerge.1.en	debian 11 / cups-ppdc
ppdmerge.1.de	debian 12 / cups-ppdc
ppdmerge.1.en	debian 12 / cups-ppdc
ppdmerge.1.fr	debian 12 / cups-ppdc
ppdmerge.1.pt	debian 12 / cups-ppdc