对于 openSUSE Tumbleweed，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke/openSUSE_Tumbleweed/home:mnhauke.repo
zypper refresh
zypper install pdfcrack
对于 openSUSE Factory ARM，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke/openSUSE_Factory_ARM/home:mnhauke.repo
zypper refresh
zypper install pdfcrack
对于 15.6，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke/15.6/home:mnhauke.repo
zypper refresh
zypper install pdfcrack
对于 15.5，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke/15.5/home:mnhauke.repo
zypper refresh
zypper install pdfcrack