Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing/openSUSE_Tumbleweed/Publishing.repo
zypper refresh
zypper install epstool
Para openSUSE Factory execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing/openSUSE_Factory/Publishing.repo
zypper refresh
zypper install epstool
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing/15.6/Publishing.repo
zypper refresh
zypper install epstool