poppler-qt6 from KDE:Qt:5.14 project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/KDE:Qt:5.14/openSUSE_Tumbleweed/KDE:Qt:5.14.repo zypper refresh zypper install poppler-qt6