pdftk from home:msvec project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:msvec/openSUSE_Tumbleweed/home:msvec.repo
zypper refresh
zypper install pdftk

需要 16.0 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:msvec/16.0/home:msvec.repo
zypper refresh
zypper install pdftk

需要 openSUSE Leap 15.6 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:msvec/openSUSE_Leap_15.6/home:msvec.repo
zypper refresh
zypper install pdftk

需要 openSUSE Leap 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:msvec/openSUSE_Leap_15.5/home:msvec.repo
zypper refresh
zypper install pdftk

需要 openSUSE Leap 15.4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:msvec/openSUSE_Leap_15.4/home:msvec.repo
zypper refresh
zypper install pdftk