yes i finally found a solution thanks you priojk
Apache (Ea4) / WHM-Cpanel * install openoffice
wget Download Apache_OpenOffice_4.1.12_Linux_x86-64_install-rpm_en-US.tar.gz (Apache OpenOffice)
tar xzf Apache_OpenOffice_4.1.12_Linux_x86-64_install-rpm_en-US.tar.gz
cd en-US/RPMS/
rpm -Uvh *.rpm
then the above steps
now makes your ODT templates PDF on server side. Our purpose is clearly for mobile users and those who cannot read ODT documents and therefore without installation provisioning such as openoffice, libreoffice.
ODT documents on the other hand can be edited. however, digitally signed PDF documents cannot be modified. Of course, those who use Dolibar with their mobile phone/tablet can create and send all documents in mobilization.
it was not easy to reach this result and I had to check the above steps, many topics in the forum and even resources such as dithub.
I hope it will be useful to everyone. I would like to thank everyone who supported the very talented development, delivery and support of Dolibarr.